1 - [M0L0T-1] refers to the quantity?
Frequency
2 - ___ is a natural thermometer.
Crocus flower
3 - ___ method is used to transfer the energy.
All of the above
4 - ___ of a DC motor reverses the direction of current through the coil every half cycle.
The commutator
5 - 1 Kilowatt hour is equal to?
3.6 Megajoule
6 - 1 Micron is equal to?
10-6m
7 - 1N is equal to?
1 Kg ms-2
8 - A 20-F capacitor is charged to 200 V. Its stored energy is:
0.4 J
9 - A 4N body falls through a height of 0.5m after falling 0.25 m its kinetic energy will be?
9.8 J
10 - A 50 kg woman stands on a scale in an elevator. What does the scale read if the elevator is moving upwards with an acceleration of 2 m/s2?
590 N
11 - A 5m wire carrying a current of 2A is at right angle to the uniform magnetic field of 0.5 weber/m2. The force on the wire is?
5 N
12 - A ball is dropped from a height of 4.2 meters. To what height will it rise if there is no loss after rebounding?
4.2m
13 - A boat will submerge when it displaces water equal to its own?
Weight
14 - A boat will submerge when it displaces water equal to its own?
Weight
15 - A body falling freely has?
Both A & B
16 - A body in equilibrium may not have?
Acceleration
17 - A body moving with an acceleration of 5 m/sec2 started with velocity of 10 m/sec. What will distance traversed in 10 seconds?
350 m
18 - A body of mass 1 kg drops from the top of tower of height 50 m. What will be its Kinetic energy 10 m below the top?
98J
19 - A body of mass 2 Kg moving with velocity 4m/s has the kinetic energy equals to?
16J
20 - A bomb at rest explodes into a large number of tiny fragments. The total momentum of tiny fragments. The total momentum of all the fragments?
Is zero
21 - A bomb of mass 12 kg initially at rest explodes into two pieces of masses 4 kg and 8 kg. The speed of the 8 kg mass is 6 m/s. The kinetic energy of the 4 kg mass is?
288 J
22 - A box is at rest on a frictionless surface. Three forces are exerted on the box such that box remains at rest. One is a force of 100 N towards the east. Another is a force of 100 N towards the north. What is the third force?
141.42 N towards the Southwest.
23 - A bullet shot straight up returns to its starting point in 10 seconds. The initial speed was?
49 m/s
24 - A capacitor stores energy in the form of?
Electrical energy
25 - A certain wire has a resistance R, the resistance of another wire identical to the first except for having the twice its diameter is?
R/4
26 - A crucial experiment that led to the theory of relativity was performed by the?
Michelson and Morley
27 - A current is flowing north along a power line, the direction of magnetic field above it neglecting the earth field is?
East
28 - A dynamo is a device which?
Converts mechanical energy into electrical energy
29 - A dynamo is often set to generate electricity, it actually acts as the source of?
EMF
30 - A feather and a lead ball are dropped from rest in vacuum on the moon. The acceleration of the feather is:
The same as that of lead ball.
31 - A floppy disk in a computer rotates from rest to an angular speed of 31.4 rad/s in time 0.892s. What is the angular acceleration of the disk?
35.20 rad/s2
32 - A force acting perpendicular to the displacement?
No work
33 - A force of 10 N makes an angle of 30 degree with y-axis. The magnitude of x-component is:
5 N
34 - A force of 3 N acts perpendicularly to a force of 4 N, their resultant has a magnitude of?
5 N
35 - A hollow metal sphere is charged to potential V. The potential at its center is:
V
36 - A long solenoid has 10 turns/cm. If the current in the solenoid is 5A what will be the magnetic field B inside the solenoid?
6.28 mT
37 - A man inside an artificial satellite feels weightlessness because the force of attraction due to the earth is?
Equal of centripetal force
38 - A measuring cylinder will be used to measure?
Volume
39 - A molecule whose charge distribution is not perfectly symmetrical is called?
A polar molecule
40 - A particle covers 50 m distance when projected with an initial speed. On the same surface how much will it cover a distance when projected with double the initial speed?
200 m
41 - A person can throw a stone to maximum distance of 100m. The greatest height to which throw the stone is?
25m
42 - A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is?
Of higher pitch when train arrives
43 - A positive electric charge?
Repels other positive charge
44 - A positively charged particle of certain mass may be held suspended in electric field of suitable strength if the field is directed?
Upward
45 - A precise measurement is the one which has?
Less absolute uncertainty
46 - A resistor of resistance R is cut into two equal parts of resistance R/2. Its resistivity becomes?
Remains same
47 - A snooker ball moving with velocity v collides head on with another snooker ball of same mass at rest. If the collision is elastic the velocity of second snooker ball is?
V
48 - A solid state detector basically is?
A reverse biased pn-junction
49 - A stone is thrown up from the surface of the earth when it reaches at maximum height. Its kinetic energy is equal to?
Zero
50 - A stone is thrown upward from the top of a 59.4m high cliff with an upward velocity component of 19.6m/s how long is the stone in the air?
6.00 s
51 - A stone is up from the surface of earth when it reaches a maximum height. Its KE equals to?
Zero
52 - A test car moves at constant speed of 10 m/s around a circular road of radius 50 m. Find its acceleration?
2.0 m/s2
53 - A transformer work with?
Alternating current only
54 - A uniform wire of length L and diameter d has a resistance R. Another wire of the same material has length 2L and diameter 2d. Its resistance will be?
R/2
55 - A wire of uniform area of cross section A and length L is cut into two equal parts. The resistivity of each part is?
Remains the same
56 - Absolute potential energy of an object at an infinite height with respect to earth is taken as?
Zero
57 - Acceptor and donor impurities donate______________?
p-carriers and n-carriers respectively
58 - According to Archimedes principle upthrust is equal to?
Weight of displaced liquid
59 - According to Pascals law the pressure of gas in a vessel is_____________?
Same in all direction
60 - Adiabatic process is also called______________?
Isentropic process
61 - Al alternate unit to kgm/s is:
Ns
62 - All natural processes are?
Irreversible
63 - All the freely falling objects have the same acceleration. This was located by which of the following first?
Galileo
64 - Alternative current is converted to direct current by?
Rectifier
65 - Among the following properties of a wave, the one that is independent of the other is?
Amplitude
66 - An electric or magnetic field can not accelerate?
Neutron
67 - An ice block with a piece of lead embedded in it floats in water. If ice melts the water level?
Falls
68 - An internal process for an ideal gas is represented on a p – v diagram by:
A portion of hyperbola
69 - An object of mass m moves in a uniform circular motion on a horizontal frictionless table. The radius of the circle is r and centripetal force F. If the radius and speed is v are doubled, what is the centripetal force now?
2F
70 - An observer moves past a stationary electron on the earth surface. His instrument measures?
Both magnetic and electric field
71 - An OP-AMP comparator is a circuit that compares the signal voltage on one of its inputs with a ______________?
Reference voltage on the other
72 - An OP-AMPs can amplify_______________?
A.C.
73 - As the rocket moves upward during its job. Its acceleration goes on?
Increasing
74 - As we move up a body above the surface of the earth. The change in potential energy will always be?
Positive
75 - At constant temperature the graph between V and 1/P is_____________?
A straight lime
76 - At what temperature is the Fahrenheit scale reading equal to twice that of the Celsius scale?
160°C
77 - At what temperature will the resistance of a copper wire becomes three times its value at 0 degree centigrade? Temperature coefficient of resistance of copper=4×10-3 per C0?
500 C0
78 - Average translational kinetic energy per molecule of an ideal gas is given by_____________?
3RT/2Na
79 - Bernoulli's equation is an expression of?
Conservation of energy
80 - Best conductor of heat among following is?
Mercury
81 - Biomass is a potential source of?
Renewable energy
82 - Blood pressure is normally measure with the effect of the Sphygnomanometer around the arm. Suppose that the blood pressure were measured with the cuff around the calf of the leg of a standing person?
Greater than it is for the arm
83 - Bogies of a train are provided with the buffers explains what?
Second law of motion
84 - Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________?
K = R/Na
85 - Boyles law helds for ideal gases in________________?
isothermal processes
86 - Brightness of the input on CRO screen is controlled by?
Grid
87 - Bullet is fired by a gun. The gun moves backward with a?
Fraction of velocity of bullet
88 - By work energy principle work done by the body is equals to change in its?
Both of above
89 - Capacitance is defined as?
Q/V
90 - Capacitance of capacitor depends upon?
Geometry of the capacitor
91 - Capacity of a body to do work is?
Energy
92 - Cathode ray oscilloscope works by deflecting beam of?
Electrons
93 - centripetal acceleration ac=___.
v2/r
94 - Charges moving perpendicular to magnetic field experience force?
Maximum
95 - Choice of zero potential energy level is?
Arbitrary
96 - Clouds float in the atmosphere because of their?
Low density
97 - Colour of light emitted by a LED depends on?
Type of semiconductor material used
98 - CRO is used for?
Displaying wave form of given voltage.
99 - Current flowing through each resistor of equal resistance in parallel combination is?
Same
100 - Device which can be used to produce both Transverse and Longitudinal waves is called?
Helical spring
101 - Dimension for acceleration due to gravity is?
LT-2
102 - Dimension of angular frequency are the same as that of?
Frequency
103 - Dimension of angular momentum is?
[ML2T-1]
104 - Dimension of centripetal force is?
[MLT-2]
105 - Dimension of pressure is__________________?
ML-1T-2
106 - Dimensions of density are?
ML-3
107 - Dimensions of Torque are?
ML2T-2
108 - Dimensions of work are?
[ML2T-2]
109 - Direction of field lines around an isolated negative charge "-q" is?
Radially Inward
110 - Direction of magnetic lines of force around a current carrying wire is given by?
Right hand rule
111 - Distance covered by freely falling body in two seconds is?
19.6 m
112 - Dopplers effect is the principle understanding?
Measuring blood flow speeds
113 - Due to polarization electric field E in a capacitor?
Decreases
114 - During projectile motion the quantities remain unchanged are?
Horizontal acceleration and Horizontal velocity
115 - Earth gravitational force of attraction vanishes at?
Infinite Distance
116 - Earth receives larger amount of energy directly from?
Sun
117 - Electric flux through a closed surface does not depends upon?
Medium
118 - Electric potential at a mid point in an electric dipole is?
0 V
119 - Electrical energy is equal to?
QV
120 - Electron volt is the unit of?
Electric energy
121 - Energy that is produced commercially from coal is called?
Thermal energy
122 - Equal charge q1 and q2 (q1=q2) are separated by 2m. The force between them is F=9 N. What are the charges?
63.00µC
123 - False ceiling is done to?
Insulate the ceiling
124 - First condition of equilibrium is?
∑F=0
125 - First law of thermodynamics is a special form of?
Law of conservation of energy
126 - For a gas obeying Boyles law if the pressure is doubled the volume becomes________________?
one half
127 - For a rocket the change in momentum per second of the ejecting gases is equal to?
Force(thrust) acting on rocket
128 - For rectifying action we use?
Diode
129 - For the successful operation of Heat engine which condition should be met ?
both A and B
130 - For total assessment of uncertainty in the final result obtained by multiplication we add?
Percentage uncertainty
131 - Force on a moving charge in a uniform magnetic field will be maximum when the angle between V and B is?
90 Degree
132 - Forces of 12 N and 5 N are added. The resultant can not be?
6 N
133 - Four resistances R1=20ÃŽ©, R2=50ÃŽ© and R R3=1ÃŽ© are connected in parallel. The equivalent resistance is R:
R<1ÃŽ©
134 - Function of three anodes in a CRO is?
To accelerate and focus the electrons.
135 - 'Fusis' is the original name of the word?
Physics
136 - Gas molecules of different masses in the same container have the same average transnational kinetic energy which is directly proportional to their_____________?
absolute temperature
137 - Global warming is due to a gas?
Carbon Dioxide
138 - Holography is a technique of?
Recording a permanent three dimensional photograph of a given single colour or a multi colour.
139 - Horizontal range is equal to 4 times of its maximum height only if angle of projection is?
45 Degree
140 - Identify true statement regarding magnetic poles?
A single magnetic pole does not exist
141 - Identify vector quantity from the following?
Force
142 - If [ A, B]=0, then two operators A and B are said to be?
Commute
143 - If 4 joules are applied against an electric field on a 2 Coulomb charge, the value of the electric potential will be?
2 Volt
144 - If a charged body is moved against the electric field it will gain?
Electrical potential energy
145 - If a dielectric is placed between the plates of a capacitor, the capacitance is?
Increases
146 - If a resistor is transversed in the opposite direction of current then the change in potential is?
Positive
147 - If air is medium between two charges then the value of K in System International unit will be?
9×109Nm2C-2
148 - If diameter of a capillary is doubled then the rise of water in it will be?
Half
149 - If potential difference across two plates of a parallel plate capacitor is doubled then the energy stored in it will be?
4 Times
150 - If the force acting on a body is doubled then the acceleration becomes?
Double
151 - If the magnitude of cross product and dot product of two vectors are equal. The angle between vectors is?
45 Degree
152 - If the mass of body is 5 kg raised of 1 m. Then work done is?
49 J
153 - If the pressure of a given gas is held constant its density is inversely proportional to its absolute temperature. We can refer it as another statement of______________?
Charles law
154 - If the separation between the plates of a capacitor is doubled then its capacitance becomes?
Half
155 - If the velocity time graph of a particle is represented by y=mt+c. Then the particle is moving with?
Constant acceleration
156 - If the volume of a gas is held constant and we increase its temperature then_______________?
its pressure rises
157 - If there is air friction then for free falling body?
Loss in Potential energy≠Gain in Kinetic energy
158 - If time constant is RC circuit is small, then the capacitor is charged or discharged?
Rapidly
159 - If two systems X and Y are in thermal equilibrium with a sysem Z, then __ is not in equilibrium.
None of the above
160 - If velocity of a moving object is doubled then the kinetic energy becomes?
4 times
161 - If we go above the surface of earth, the gravitational force?
Varies inversely to the square of the distance
162 - If X=A.B, then X is '1' when?
A=1, B=1
163 - If you were to make a very sensitive glass thermometer which liquid would you choose among following?
Mercury
164 - In __ state of matter, molecules do not leave their position.
Solid
165 - In a clinical thermometer the mercury in the capillary tube does not contract once removed from the patient because_______________?
The capillary tube has a small constriction near the bulb
166 - In a half-wave rectifier the r.m.s. value of the A.C component of the wave is________________?
More than D.C value
167 - In an amplifier maximum voltage gain is obtained when load resistance is equal to?
Infinity
168 - In forward bias the width of potential barrier_____________?
Decreases
169 - In gases heat is mainly transferred by?
Convection
170 - In gravitational field if the displacement is in the direction of gravitational force, the work done will be?
Positive
171 - In monitoring body temperature the __ waves are used.
Infrared waves
172 - In order to check the correctness of an equation we are to show that __ of the quantities on __ side of the equation are __ .
Dimension, Both, Same
173 - In which process all the heat supplied is converted into work done ?
isothermal
174 - In which process entropy remains constant________________?
adiabatic
175 - Ionization energy of an atom relative to the binding energy of the nucleus is?
Smaller
176 - It is customary to represent a current flowing towards the reader by a symbol?
(.)
177 - It is easy to burst a gas filled balloon with a needle than with a nail. It is because?
Needle exerts more pressure than nail on the balloon
178 - Joule Thomson effect is based upon __________ ?
Sudden expansion of gases
179 - Kinetic energy is conserved in?
Elastic collision
180 - Kirchhoff's first rule is based on conservation of?
Charge
181 - Kirchhoff's second rule is based on?
Energy conservation
182 - Least count of screw guage is?
1mm
183 - Light from some stars shows an apparent change in frequency because of:
Relative motion
184 - Lines which provide information about the electric force exerted on charged particles are?
Electric field lines
185 - Mach number is used in connection with the speed of___________?
aircraft
186 - Mass of fuel consumed by a typical rocket to overcome earth gravity is?
10000 kgs-1
187 - Mathematically work can be defined as?
W=F.d
188 - Maximum number of components of a vector may be?
Infinite
189 - Medium which sends signal from source to destination is known as ________ ?
Transmission channel
190 - Mercury is used as thermometric material because it has?
All above properties
191 - Metabolism is the name of a process in which energy transformation takes place within______________?
Human body
192 - Minimum escape velocity of a rocket to be launched into the space?
11 Km/s
193 - Minimum number of unequal forces whose vector sum can equal zero is?
3
194 - Name the SI unit having the symbol cd?
Candela
195 - Newton's first law of motion is valid only in the absence of?
Net Force
196 - Newton's Third Law of Motion?
every action there is an equal and opposite reaction
197 - Non-inverting amplifier circuits have____________?
A very high input impedance
198 - Normal human body temperature 98.6°F corresponds to______________?
37°C
199 - Number of perpendicular components of a force is?
2
200 - Numerical value of Boltzmanns constant is______________?
1.38×10-23JK-1
201 - Numerical value of constants in any formula can not be determined by dimensional analysis, however it can be found by?
Experiments
202 - Numerical value of violet colour in colour code resistors is?
7
203 - Oil rises up to wick in a lamp because_____________?
Capillary action phenomenon
204 - On making grid potential excessively negative, plate resistance?
Become infinite
205 - One CSL unit is equal to?
1.4 times the mass of the sun
206 - One of the isotopes of uranium is 238U92, the number of neutrons in this isotope is?
146
207 - Path followed by a projectile is known as its?
Trajectory
208 - Petrol engine is a________________?
all the above
209 - Plank's constant has the dimensions of?
Energy
210 - Power is equal to dot product of force and?
Velocity
211 - Power needed to lift a mass of 5000g to a height of 1m in 2 sec is?
24.5 Watt
212 - Powered and remote control guided missiles are used?
Long ranges
213 - Professor Dr. Abdus Salam awarded Noble prize in which year?
1979
214 - Pull of earth on mass of 10 kg on the surface of the earth is?
98N
215 - Rate of change of linear momentum p is equal to the?
Force
216 - Reactances of a 52 mH inductor and a 76 µF capacitor at equal __ frequency.
80 Hz
217 - Reciprocal of resistance is called?
Conductance
218 - Rectangular components have angle between them is?
90 Degree
219 - Relative to the original photon, the photons that emerges from a collision with an electron has?
Longer wavelength
220 - Relative to the sum of the masses of its constituent nucleons, tha mass of a neclous is?
Smaller
221 - Resultant of 120 N and 20 N forces can not be?
141 N
222 - Reverse process of vector addition is called?
Resolution of a vectors
223 - Rocket works on the principle of?
Newton's third law
224 - Rutherford in his atomic model could not explain behavior of ___________ ?
Electrons
225 - SI unit of strength of electric field is?
N/C
226 - Smaller is the least count of the instrument more is the measurement?
Precise
227 - Solar cells work on the principle of?
Photovoltaic effect
228 - Some amount of heat given to gas under isothemal condition will result in?
Doing external work
229 - Special organ called Ampullae of lorenzini that are very sensitive to electric field are found in?
Sharks
230 - Specific heat of ice is?
2100 JKg-1K-1
231 - Splitting of different colours of light in a prism is?
Dispersion of light
232 - Standard condition STP refer to a gas at ___________________?
all of the above
233 - Sudden fall of atmospheric pressure indicates?
Storm
234 - Symbol of the SI unit of the solid angle?
sr
235 - System International unit of electric potential is?
Volt
236 - Technique of collecting information about an object from a distance without malting physical contact with it is?
Remote sensing
237 - Temperature is a property which determines_________________?
In which direction heat will flow between two systems
238 - Temperature is a?
Scalar quantity
239 - Term "RC" has same unit as that of?
Time
240 - Tesla is a unit of magnetic?
Induction
241 - The __ will cause least damage to a person exposed to radioactive rays?
Gamma rays
242 - The acceleration along x-axis direction in cases of projectile is?
Zero
243 - The acceleration of gravity of the moon is one-sixth that on earth. The weight of a 70kg man on the moon is?
114.33 N
244 - The altitude of Geostationary orbits in which communication satellite are launched above the surface of the earth is?
42300 KM
245 - The area enclosed by the curve ABCDA for a Carnot heat engine represents the work done by Carnot engine_______________?
during one cycle
246 - The average acceleration caused by gravity per second is____________?
32 feet
247 - The combined resistance of two electrical resistors connected in series is 8 Ω. Their combined resistance in a parallel arrangement will be?
2Ω
248 - The consumption of energy by a 60 watt bulb in 2 sec is?
120 J
249 - The cross product of vector F with itself results?
Null vector
250 - The dimension [ML2T-3] belongs to?
Power
251 - The dimension of light year are that of?
Length
252 - The dimension of volume flow rate of fluid are?
[L3T-1]
253 - The electronic circuits which implement the various logic operations are called_____________?
Logic gates
254 - The energy of the molecular motion appears in the form of?
Temperature
255 - The equation of motion are not useful for objects moving with:
Variable acceleration
256 - The escape velocity is maximum for?
Earth
257 - The Fahrenheit and centigrade scales agree to________________?
40
258 - The field in which the work done is independent of the path followed or work done in a closed path is zero is called?
Conservative field
259 - The first phase of a nuclear reaction involves the formation of?
A compound nucleus
260 - The force experienced by unit positive charge placed at a point in an electric field is called what?
Electric field intensity
261 - The frequency is adjusted by?
Tuning
262 - The grid is move closer to the cathode without changing anything, the amplification factor of the valve will?
Increase
263 - The horizontal component of velocity for projectile?
Remain same
264 - The horizontal range is maximum when it is projected at an angle of?
45 Degree
265 - The index of refraction depends on?
Speed of light
266 - The inductance required for a 2000ÃŽ© reactance at 20 MHz equals?
15.9µH
267 - The kinetic energy of a body of mass 2 kg is 25 Joule. Its speed will be?
5 ms-1
268 - The law that governs the force between electric charges bears the name of?
Coulomb
269 - The least count of Vernier caliper is ________ containing 10 Vernier scale divisions?
0.1mm
270 - The Lorentz transformation equations reduce to Galilean transformations equation when?
Velocity is very low
271 - The magnetic inside a current carrying long solenoid is?
Uniform and strong
272 - The magnitude of the force of the gravity between two identical objects is given by F0. If the mass of each object is doubled and the distance between them is doubled. Then the new force of gravity between the objects will be?
F0
273 - The matter of the sun is in ___ state.
Plasma
274 - The minimum initial velocity which is given to a body to enable it to escape out of?
Escape velocity
275 - The most suitable unit for expressing nuclear radius is_______?
Fermi
276 - The motion of body around its axis is called?
Rotatory motion
277 - The number of basic units in SI is?
7
278 - The operation of a transistor requires______________?
None of the above
279 - The operational amplifier is______________?
A high gain amplifier
280 - The percentage uncertainty in radius of a sphere is 2%. The total percentage uncertainty in the volume of a sphere is?
0.06
281 - The performance of a refrigerator is described by________________?
coefficient of performance
282 - The physical quantity "Impulse" has the same dimensions as that of:
Momentum
283 - The physics underlying the operation of a refrigerator most closely resembles the physics underlying?
A heat engine
284 - The pressure exerted by a column of mercury 76cm high and at 0°C is called_______________?
1 atmosphere
285 - The purpose of flywheel in the engines is________________?
to smooth out the energy variation
286 - The rate of doing work is called?
Power
287 - The ratio between orbital and escape velocities is?
1/√2
288 - The ratio between the energy dissipated in some process and the heat that appears as a result is the?
Mechanical equivalent of heat
289 - The ratio of dimensions of power to work is:
1 : T
290 - The rectangular voltage is an example of____________________?
A digital waveform
291 - The relation between velocity, frequency and wavelength of a wave is?
fÃŽ»=v
292 - The scales of temperature are based on two fixed points which are_________________?
The temperature of melting ice and boiling water at atmospheric pressure
293 - The SI unit of impulse is?
Kgm/s
294 - The SI unit of pressure is Pascal which is equal to?
1Nm-2
295 - The SI unit of resistivity is?
Ohm-m1
296 - The size of one degree of Celsius is equal to_________________?
1.8 degrees of Fahrenheit scale
297 - The space around the earth in which gravitational force acts on a body is called?
Gravitational field
298 - The specially designed semi-conductor diodes used as fast counters in electronic circuits are_______________?
Photo diodes
299 - The symbol of the prefix used for Mega is_______?
M
300 - The temperature of a gas of initial volume V1 in a glass container is increased from T1=200 K to T2=800 K. The new volume is V2, which equation is correct?
V1=V2/4
301 - The time required for a charge particle to make a complete revolution in a magnetic field does not depend upon?
Its energy
302 - The total time for which projectile remains in air is called?
Time of flight
303 - The tunnel effect makes possible?
Alpha Decay
304 - The turning effect of force is called_________?
Torque
305 - The unit of entropy is________________?
J.K
306 - The value of g becomes at a height equal to one radius of the earth more above the earth surface becomes?
1/4g
307 - The value of ÃŽ³ for diatomic gas is_______________?
1.4
308 - The weight of a body of 20 kg mass is ___ newton on earth.
200
309 - The work done by compound pendulum in one complete oscillation is?
Zero
310 - The work done in the isochoric process is________________?
zero
311 - The work done is half of maximum value if the angle between force and displacement is?
60 Degree
312 - The work done will be zero when the angle between the force and the distance is?
90 Degree
313 - The working of transistor as amplifier is similar to________________?
Triode vacuum tube
314 - To obtain a p-type semi-conductor Si Crystal must be doped with foreign atoms whose valency is_____________?
3
315 - To obtain an n-type semiconductor germanium crystal it must be doped with foreign atoms whose valency is_____________?
5
316 - To open a door easily the handle should be fixed?
Away from mid-point opposite
317 - Total flux through a closed surface depends upon?
Charge and Medium
318 - Triple point of water is_____________________?
273.16°C at 0.611 Kpa
319 - Two bodies kept at a certain distance feel a gravitational force F to each other. If the distance between them is made double the former distance the force will be?
1/4F
320 - Two forces of magnitude 10 N and 20 N act on body in directions making angle of 30 degree. The component of resultant force will be?
25.98 N
321 - Two forces of magnitude 10N. Their resultant is equal to 20N. The angle between them is?
0 Degree
322 - Two oppositely charged balls X and Y attract the third ball Z, when placed near them turn by turn. The third ball Z must be?
Electrically neutral
323 - Two rods one of copper and other of steel experiences the same upthrust when placed in water. Thus both have?
Equal volume
324 - Type of work which can not be described in macroscopic thermodynamics?
Internal work
325 - Ultimately all energy transfer result in heating of the?
Environment
326 - Uncertainty in position is only ÃŽ”y=1.5×10-11 m. Determine the minimum uncertainty in the momentum of the object (h=6.63 × 10-34 Js)?
7.00×10-24 kg m/s
327 - Under conditions corresponding to a triple point , a substance?
May be in any or all of the above state
328 - Unit of noise pollution is?
Decibel
329 - Unit of permeability of free space is?
WbA-1m-1
330 - Unit of work in base unit is?
kgm2sec-2
331 - Value of e/m is smallest for?
Proton
332 - Velocity of an oscillating charge as it moves to and fro along the wire is?
Changing
333 - Velocity of heat radiation in vacuum is?
Equal to that of light
334 - Vertical component of a force is a?
Vector Quantity
335 - Watt m-2 is the unit of?
Intensity
336 - Waves transmits from one place to another?
Energy
337 - We can produce heat by________________?
All of the above
338 - We prefer mercury as a thermometric substance because______________?
All of above
339 - What is the equation of electric intensity?
E=F/q
340 - What is the formula of conversion from Celcius to Kelvin scale?
T(K)=273+C
341 - What is the formula of mass of earth?
Me=R2g/G
342 - What is the formula of momentum?
P=mv
343 - What is the half life of Radium-226?
1620 Years
344 - What is the internal energy of a system?
The energy of the atoms of the system
345 - What is the orbital velocity of geostationary satellite?
3.08 km/s
346 - What is the SI unit of e.m.f?
JC-1
347 - What is the unit of capacitance?
Farad
348 - What is the unit of momentum?
NS
349 - What is the unit of power?
Watt
350 - What is the unit of rate of flow of heat?
Js-1
351 - What is the unit of volume?
Cubic Meter
352 - What is the unit of work?
Joule
353 - When 9×1013 electrons are removed from a body which has charge of 2.50 µC. What is its charge now?
+16.9µC
354 - When a body is throwing straight up at highest point its velocity becomes zero and its acceleration will be?
+9.8 ms-2
355 - When a diamagnetic substance is inserted in a current carrying coil. The magnetic field?
Decreases
356 - When a horse pulls a wagon the force that cause the horse to move forward is the force?
The ground exert on him
357 - When an area is held perpendicular to the filed lines then the magnitude of electric flux is?
Maximum
358 - When milk is churned the cream separates from it due to?
Centrifugal force
359 - When object is thrown upward it rises to height "h" how high is the object in terms of h, when it has lost one third of its original Kinetic Energy?
h/4
360 - When some compass needles are placed on a card board along a circle with with the centre at the wire they will?
Point in the direction of N-S
361 - When the falling object strikes the ground kinetic energy changes into?
Heat and Sound energy
362 - When two protons are brought together?
Potential energy increases
363 - Which among the following have same unit?
Work and Torque
364 - Which among the following is a scalar quantity?
Distance
365 - Which among the following is a scalar quantity?
Mass
366 - Which among the following is a scalar quantity?
Speed
367 - Which among the following is a vector quantity?
Displacement
368 - Which electromagnetic radiation is used for satellite communication?
Microwave
369 - Which instrument is used to measure the force and velocity of wind?
Anemometer
370 - Which is the correct record for the diameter of wire when measured by a screw guage of least count 0.001 cm?
2.312 cm
371 - Which material should be inserted between the plates of a capacitor in order to increase its capacitance?
Mica
372 - Which of the following branch of Physics deals with the internal structure of earth?
Geophysics
373 - Which of the following is non conservative force?
Frictional force
374 - Which of the following is not derived quantity________?
Time
375 - Which of the following is used for regulated electric supply?
Zener diode
376 - Which of the following is used in Oven?
Microwaves
377 - Which of the following properties of molecules of a gas is same for all gases at particular temperature ?
kinetic energy
378 - Which of the following waves have smallest velocity in vacuum?
Sound
379 - Which of the given variable is present in all of the three equation of motion?
Acceleration
380 - Which one is not an example of adiabatic process ?
conversion of water into ice in refrigerator
381 - Which one is true for internal energy ?
All are correct
382 - Which one of the following is not a radioactive element ?
Cadmium
383 - Which one of the following is not vector quantity _______?
Speed
384 - Which one of the following is perfectly elastic body?
Both B & C
385 - Which one or more of the following would lead to an increase in the maximum kinetic energy of the ejected photoelectrons from a metal surface on which light is shinning?
Increasing the frequency of the incident light.
386 - Which part of a transistor is doped the heaviest to supply charge carries?
Emitter
387 - Which quantity is a state function_______________?
internal energy
388 - Which shows correct relation between H and T of projectile?
H=gT2/8
389 - Who defined the law of gravitation?
Newton
390 - Who were the pioneers of Physics?
Greek
391 - Why the needle of iron swims on water surface when it is kept gently?
Due to surface tension
392 - Why the needle of iron swims on water surface when it is kept gently?
Due to surface tension
393 - Word Physics is derived from which language?
Greek
394 - Work done by the gravitational force in displacing the object from a point to infinity, where the force of gravity become zero is called?
Absolute potential energy
395 - Work done by the string of a simple pendulum during one complete oscillation is equal to?
Zero
396 - Work done in gravitational field is?
Negative
397 - Work done on charged particle moving in uniform magnetic field is?
Zero
398 - Work is a?
Scalar quantity
399 - You are a passenger on a hot air balloon that is rising with constant velocity and you are carrying a buzzer that emits a sound of frequency f. If you accidently drop the buzzer from the balloon. what can you conclude about the sound you hear as if falls
The frequency decreases and intensity decreases
400 - Yukawa's theory suggest that nuclear forces arrives throught the exchange of?
Mesons
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