MCQOPTIONS
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MCQOPTIONS
This section includes 778 Mcqs, each offering curated multiple-choice questions to sharpen your Physics Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Which of the following pair has same direction always ? |
| A. | force, displacement |
| B. | force, velocity |
| C. | force, acceleration |
| D. | force, momentum |
| Answer» D. force, momentum | |
| 52. |
The dimension of force is____________________? |
| A. | MLT-2 |
| B. | ML2T-2 |
| C. | ML2T2 |
| D. | ML-2T-2 |
| Answer» B. ML2T-2 | |
| 53. |
Study of living science relates with________? |
| A. | Physical science |
| B. | Biological science |
| C. | Just living science |
| D. | Organ science |
| Answer» C. Just living science | |
| 54. |
The first book of Physics was written by__________? |
| A. | Kelvin |
| B. | Newton |
| C. | Aristotle |
| D. | Faraday |
| Answer» D. Faraday | |
| 55. |
Which one of the following is massless? |
| A. | Proton |
| B. | Electron |
| C. | Neutron |
| D. | Photon |
| Answer» E. | |
| 56. |
The formula of inter-conversion of centigrade and Fahrenheit scale is___________? |
| A. | c-32/9 |
| B. | f -32/9 =c/5 |
| C. | f-32/9=c/9 |
| D. | none |
| Answer» C. f-32/9=c/9 | |
| 57. |
Name the branch of science which deals with the study of sound and sound waves? |
| A. | Aeronautics |
| B. | Acoustics |
| C. | Aerostatics |
| D. | Aetiology |
| Answer» C. Aerostatics | |
| 58. |
linear expansion occurs in_________? |
| A. | solid |
| B. | liquid |
| C. | both |
| D. | none |
| Answer» B. liquid | |
| 59. |
The unit of coefficient of linear expansion or volume expansion is__________? |
| A. | K |
| B. | K-1 |
| C. | K -2 |
| D. | none |
| Answer» C. K -2 | |
| 60. |
The branch of Physics which deals with properties of gravitational? |
| A. | Field theory |
| B. | Acoustics |
| C. | Hydro dynamic |
| D. | Optics |
| Answer» B. Acoustics | |
| 61. |
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? |
| A. | 4.00 s |
| B. | 5.00 s |
| C. | 6.00 s |
| D. | 7.00 s |
| Answer» D. 7.00 s | |
| 62. |
The average acceleration caused by gravity per second is____________? |
| A. | 22 feet |
| B. | 32 feet |
| C. | 52 feet |
| D. | 42 feet |
| Answer» C. 52 feet | |
| 63. |
Which of the following branch of Physics deals with the internal structure of earth? |
| A. | Biophysics |
| B. | Geophysics |
| C. | Plasma physics |
| D. | Atomic physics |
| Answer» C. Plasma physics | |
| 64. |
The symbol of the prefix used for Mega is_______? |
| A. | G |
| B. | h |
| C. | M |
| D. | E |
| Answer» D. E | |
| 65. |
Which one of the following is not vector quantity _______? |
| A. | Acceleration |
| B. | Displacement |
| C. | Speed |
| D. | Force |
| Answer» D. Force | |
| 66. |
Which of the following is not derived quantity________? |
| A. | Time |
| B. | Density |
| C. | Volume |
| D. | Area |
| Answer» B. Density | |
| 67. |
Who were the pioneers of Physics? |
| A. | Egyptians |
| B. | Greek |
| C. | Latin |
| D. | Persians |
| Answer» C. Latin | |
| 68. |
The acceleration in the rocket at any instant is proportional to the nth power of the velocity of the expelled gases. Where the value of n must be ? |
| A. | -1 |
| B. | 1 |
| C. | 2 |
| D. | -2 |
| Answer» C. 2 | |
| 69. |
The least count of Vernier caliper is ________ containing 10 Vernier scale divisions? |
| A. | 0.001mm |
| B. | 0.01mm |
| C. | 0.1mm |
| D. | 0.0001mm |
| Answer» D. 0.0001mm | |
| 70. |
Which of the following is not an example of projectile motion? |
| A. | a gas filled ballon |
| B. | bullet fired from gun |
| C. | a football kicked |
| D. | a base ball shot |
| Answer» B. bullet fired from gun | |
| 71. |
The distance covered by a body in time t starting from rest is__________________? |
| A. | at2/2 |
| B. | Vt |
| C. | a2t/2 |
| D. | at2 |
| Answer» B. Vt | |
| 72. |
When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are________________? |
| A. | 5m/s, 1m/s |
| B. | 3m/s, 3m/s |
| C. | 6m/s, 1m/s |
| D. | 4m/s, 2m/s |
| Answer» B. 3m/s, 3m/s | |
| 73. |
The thrust on the rocket in the absence of gravitational force of attraction is__________________? |
| A. | Constant |
| B. | not constant |
| C. | constant if the rate of ejected gases is constant |
| D. | constant for short range rocket |
| Answer» B. not constant | |
| 74. |
The force beared by a wall on which water strikes normally at a speed of 10m/sec and at a discharge of 0.0001m3/sec is__________________? |
| A. | 1 N |
| B. | 10 N |
| C. | 100 N |
| D. | none |
| Answer» B. 10 N | |
| 75. |
The distance between any two consecutive crests or troughs is called____________________? |
| A. | frequency |
| B. | period |
| C. | Wave length |
| D. | phase difference |
| Answer» D. phase difference | |
| 76. |
Waves transmit ________________ from one place to another? |
| A. | energy |
| B. | mass |
| C. | both |
| D. | none |
| Answer» B. mass | |
| 77. |
The trajectory (or path) of a projectile is_________________? |
| A. | straight line |
| B. | parabola |
| C. | hyperbola |
| D. | circle |
| Answer» C. hyperbola | |
| 78. |
The range of the projectile at 30 deg and 60 deg are__________________? |
| A. | equal to 45 deg |
| B. | equal to 90 deg |
| C. | equal to each other |
| D. | none of the above |
| Answer» D. none of the above | |
| 79. |
Which of the following properties of molecules of a gas is same for all gases at particular temperature ? |
| A. | momentum |
| B. | mass |
| C. | velocity |
| D. | kinetic energy |
| Answer» E. | |
| 80. |
Which one is true for internal energy ? |
| A. | It is sum of all forms of energies associated with molecules of a system |
| B. | It is a state function of a system |
| C. | It is proportional to transnational K.E of the molecules |
| D. | All are correct |
| Answer» E. | |
| 81. |
Standard condition STP refer to a gas at ___________________? |
| A. | 76cm 0°C |
| B. | 760mm 273K |
| C. | 1atm 273K |
| D. | all of the above |
| Answer» E. | |
| 82. |
The area enclosed by the curve ABCDA for a Carnot heat engine represents the work done by Carnot engine_______________? |
| A. | at any instant |
| B. | averagely |
| C. | during its operation |
| D. | during one cycle |
| Answer» E. | |
| 83. |
Triple point of water is_____________________? |
| A. | 273°C at 6.11 Kpa |
| B. | 273K at 61.6 Kpa |
| C. | 273.16°C at 0.611 Kpa |
| D. | 273.16K at 750 Kpa |
| Answer» D. 273.16K at 750 Kpa | |
| 84. |
For a gas obeying Boyles law if the pressure is doubled the volume becomes________________? |
| A. | double |
| B. | one half |
| C. | four times |
| D. | one fourth |
| Answer» C. four times | |
| 85. |
Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________? |
| A. | K = RNa |
| B. | K = R/Na |
| C. | K = Na/Ra |
| D. | K = nRNa |
| Answer» C. K = Na/Ra | |
| 86. |
What is the shape of velocity, time graph for constant acceleration ? |
| A. | straight inclined line |
| B. | parabola |
| C. | inclined curve |
| D. | declined curve |
| Answer» B. parabola | |
| 87. |
When X-rays are passed through successive aluminum sheets what happens to their thickness ? |
| A. | increases |
| B. | it decreases |
| C. | it remains same |
| D. | sometimes increases and sometimes decreases |
| Answer» D. sometimes increases and sometimes decreases | |
| 88. |
In a semiconductors the charge carriers are ___________________? |
| A. | Holes only |
| B. | Electrons only |
| C. | Electron and holes both |
| D. | All of the above |
| Answer» D. All of the above | |
| 89. |
What is the value of the current in a wire of 10cm long at the right angle to a uniform magnetic field of 0.5 Weber/m2 when the force acting on the wire is 5N ? |
| A. | 1A |
| B. | 10A |
| C. | 100A |
| D. | 1000A |
| Answer» D. 1000A | |
| 90. |
If the plane of the rectangular coil is parallel to the magnetic field (i.e radial magnetic field) the torque on the coil is_____________________? |
| A. | τ = NIAB cosφ |
| B. | τ = NIAB sinφ |
| C. | τ = NIAB tanφ |
| D. | τ = NIAB |
| Answer» E. | |
| 91. |
Gravitation force of moon is_________? |
| A. | 7.2 m/s² |
| B. | 1.62 m/s² |
| C. | 9.8 m/s² |
| D. | 3.75 m/s² |
| Answer» C. 9.8 m/s² | |
| 92. |
Biomass can be converted into fuels by____________________? |
| A. | direct combustion |
| B. | fermentation |
| C. | both A and B |
| D. | none of these |
| Answer» D. none of these | |
| 93. |
In scientific notation, numbers are expressed in________________? |
| A. | Power of ten |
| B. | Powers of two |
| C. | Reciprocal |
| D. | Decimal |
| Answer» B. Powers of two | |
| 94. |
Gravitation force of sun is__________? |
| A. | 274 m/s² |
| B. | 362 m/s² |
| C. | 300 m/s² |
| D. | None of these |
| Answer» B. 362 m/s² | |
| 95. |
Gravitation force of earth is___________? |
| A. | 9.80 m/s² |
| B. | 7.21 m/s² |
| C. | 1.62 m/s² |
| D. | None of these |
| Answer» B. 7.21 m/s² | |
| 96. |
The size of one degree of Celsius is equal to_________________? |
| A. | One degree of Fahrenheit scale |
| B. | 1.8 degrees of Fahrenheit scale |
| C. | 3.2 degrees of Fahrenheit scale |
| D. | 2.12 degrees of Fahrenheit scale |
| Answer» C. 3.2 degrees of Fahrenheit scale | |
| 97. |
The centripetal acceleration produced in a rotating body is commonly due to change on_________of body? |
| A. | magnitude |
| B. | direction |
| C. | both |
| D. | None of these |
| Answer» C. both | |
| 98. |
A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe _____________________? |
| A. | always an node in formed |
| B. | always an antinode is formed |
| C. | neither node nor antinode is formed |
| D. | sometimes a node and sometimes an antinode is formed |
| Answer» B. always an antinode is formed | |
| 99. |
In vibrating cord the points where the amplitude is maximum, are called ___________________? |
| A. | antinodes |
| B. | nodes |
| C. | troughs |
| D. | crests |
| Answer» B. nodes | |
| 100. |
A point source of light placed in a homogeneous medium gives rise to ___________________? |
| A. | a cylindrical wave front |
| B. | an elliptical wave front |
| C. | a spherical wave front |
| D. | a plane wave front |
| Answer» D. a plane wave front | |