MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 488 Mcqs, each offering curated multiple-choice questions to sharpen your Uncategorized topics knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Center of gravity of an irregular body lies on the |
| A. | edge |
| B. | center of body |
| C. | point of intersection of lines |
| D. | along the axis of rotation |
| Answer» D. along the axis of rotation | |
| 52. |
Object is in equilibrium if resultant force acting on it is |
| A. | increasing |
| B. | decreasing |
| C. | zero |
| D. | becomes constant |
| Answer» D. becomes constant | |
| 53. |
Number of forces a falling tennis ball experiences is |
| A. | 1 |
| B. | 3 |
| C. | 2 |
| D. | 4 |
| Answer» D. 4 | |
| 54. |
Point where all weight of object acts is called |
| A. | central point |
| B. | center of gravity |
| C. | edge |
| D. | center of mass |
| Answer» C. edge | |
| 55. |
Force acting on two point masses is directly proportional to |
| A. | sum of masses |
| B. | difference of masses |
| C. | distance between masses |
| D. | product of masses |
| Answer» E. | |
| 56. |
On scale of building, gravitational field is |
| A. | increasing |
| B. | decreasing |
| C. | uniform |
| D. | varying |
| Answer» D. varying | |
| 57. |
Mass of Earth when it's radius is 6400 km and gravitational field strength is 9.81 N kg -1 is {{}} |
| A. | 6.0 1024 kg |
| B. | 5 1023 kg |
| C. | 40 109 kg |
| D. | 9 10 24 kg |
| Answer» B. 5 1023 kg | |
| 58. |
Decrease in field strength on top of Mount Everest is |
| A. | 10% |
| B. | 5% |
| C. | 1% |
| D. | 0.3% |
| Answer» E. | |
| 59. |
Work done on an object to bring it to certain point in space is called |
| A. | gravitational potential energy |
| B. | potential energy |
| C. | kinetic energy |
| D. | mechanical energy |
| Answer» B. potential energy | |
| 60. |
Spacing between field lines indicates |
| A. | direction of field lines |
| B. | strength of field lines |
| C. | magnitude of field lines |
| D. | work done by field lines |
| Answer» C. magnitude of field lines | |
| 61. |
Mass of satellite orbiting Earth is |
| A. | considered |
| B. | irrelevant |
| C. | should be infinite |
| D. | should be zero |
| Answer» C. should be infinite | |
| 62. |
N kg-1is equivalent to{{}} |
| A. | m s-2 |
| B. | m s-1 |
| C. | m s |
| D. | m s-3 |
| Answer» B. m s-1 | |
| 63. |
Square of orbital period is proportional to |
| A. | radius |
| B. | square of radius |
| C. | cube of radius |
| D. | square of diameter |
| Answer» D. square of diameter | |
| 64. |
Hooke's law states that |
| A. | the extension is proportional to the load when the elastic limit is not exceeded |
| B. | the extension is inversely proportional to the load when the elastic limit is not exceeded |
| C. | the extension is independent of the load when the elastic limit is not exceeded |
| D. | load is dependent on extension |
| Answer» B. the extension is inversely proportional to the load when the elastic limit is not exceeded | |
| 65. |
1 torr is equal to |
| A. | 1 N m |
| B. | 1 mm Hg |
| C. | 1 bar |
| D. | All of the above |
| Answer» C. 1 bar | |
| 66. |
Principle of superposition can be applied to |
| A. | EM waves |
| B. | sound waves |
| C. | radio waves |
| D. | all of above |
| Answer» E. | |
| 67. |
Celsius scale is based on properties of |
| A. | Mercury |
| B. | Aluminum |
| C. | Cesium |
| D. | Water |
| Answer» E. | |
| 68. |
Supply of energy depends upon |
| A. | mass of material |
| B. | the change in temperature |
| C. | the material itself |
| D. | all of above |
| Answer» E. | |
| 69. |
1 W is equal to {{}} |
| A. | 10 J s-1 |
| B. | 1 J s |
| C. | 1 J s-1 |
| D. | 100 J s |
| Answer» D. 100 J s | |
| 70. |
Temperature can't be lower than |
| A. | 0 C |
| B. | 0 F |
| C. | 0 K |
| D. | 0 R |
| Answer» D. 0 R | |
| 71. |
Ideal resistance of ammeter is |
| A. | 1 |
| B. | 2 |
| C. | 0 |
| D. | infinite |
| Answer» D. infinite | |
| 72. |
1 V is equal to {{}} |
| A. | 1 J C-1 |
| B. | 2 J C-1 |
| C. | 1 J-1 C |
| D. | 2 J-1 C |
| Answer» B. 2 J C-1 | |
| 73. |
Resistance of metal is affected by |
| A. | presence of impurities |
| B. | temperature |
| C. | both A and B |
| D. | pressure |
| Answer» D. pressure | |
| 74. |
Current and voltage are |
| A. | directly related |
| B. | inversely related |
| C. | not related |
| D. | gives abnormal behavior on graph |
| Answer» B. inversely related | |
| 75. |
Number of isotopes neon has is |
| A. | 2 |
| B. | 4 |
| C. | 3 |
| D. | 5 |
| Answer» D. 5 | |
| 76. |
1 eV is equal to {{}} |
| A. | 1.6 10 -19 J |
| B. | 2.0 10 -20 J |
| C. | 3 J |
| D. | 4 J |
| Answer» B. 2.0 10 -20 J | |
| 77. |
Characteristic properties of waves are |
| A. | reflection |
| B. | refraction |
| C. | interference |
| D. | all of above |
| Answer» E. | |
| 78. |
Least count of screw gauge is |
| A. | 0.01 cm |
| B. | 0.5 cm |
| C. | 0.1 cm |
| D. | 0.01 mm |
| Answer» E. | |
| 79. |
Energy of a system executing s.h.m is |
| A. | increasing |
| B. | decreasing |
| C. | constant |
| D. | variable |
| Answer» D. variable | |
| 80. |
Change in G.P.E can be written as |
| A. | mgh |
| B. | mh |
| C. | mg |
| D. | gh |
| Answer» B. mh | |
| 81. |
Smallest division on a rule is of |
| A. | 1 cm |
| B. | 1 m |
| C. | 1 mm |
| D. | 10 cm |
| Answer» D. 10 cm | |
| 82. |
Vehicle will accelerate as long as |
| A. | air resistance is greater than thrust |
| B. | air resistance is greater than inertia |
| C. | thrust is greater than air resistance and friction |
| D. | friction is greater than thrust |
| Answer» D. friction is greater than thrust | |
| 83. |
Barrel of screw gauge has |
| A. | 100 divisions |
| B. | 50 divisions |
| C. | 10 divisions |
| D. | 45 divisions |
| Answer» C. 10 divisions | |
| 84. |
Smallest division on stopwatch is |
| A. | 0.1 s |
| B. | 0.05 s |
| C. | 0.01 s |
| D. | 1 s |
| Answer» D. 1 s | |
| 85. |
Density of water in kg m-3 is {{}} |
| A. | 1000 |
| B. | 100 |
| C. | 10 000 |
| D. | 4000 |
| Answer» B. 100 | |
| 86. |
1 N is equal to {{}} |
| A. | 1 kg m s-2 |
| B. | 10 kg m s-1 |
| C. | 10 kg m s-2 |
| D. | 100 kg m s-2 |
| Answer» B. 10 kg m s-1 | |
| 87. |
Prefix for 10-9is {{}} |
| A. | micro |
| B. | deci |
| C. | centi |
| D. | nano |
| Answer» E. | |
| 88. |
500 MW can be written in powers of 10 as {{}} |
| A. | 500 106 |
| B. | 500 103 |
| C. | 500 10-6 |
| D. | 500 109 |
| Answer» B. 500 103 | |
| 89. |
Point where entire weight of an object acts is |
| A. | edge |
| B. | center of gravity |
| C. | central point |
| D. | can be anywhere in body |
| Answer» C. central point | |
| 90. |
1 u is equal to {{}} |
| A. | 1.660 10-27 kg |
| B. | 2 10-27 kg |
| C. | 3 10-27 kg |
| D. | 5 10-27 kg |
| Answer» B. 2 10-27 kg | |
| 91. |
Normal force acting per unit cross sectional area is called |
| A. | weight |
| B. | pressure |
| C. | volume |
| D. | friction |
| Answer» C. volume | |
| 92. |
Ratio of tensile to strain is |
| A. | Young's modulus |
| B. | stress |
| C. | stiffness |
| D. | tensile force |
| Answer» B. stress | |
| 93. |
Mass excess for U-235 is |
| A. | 0.034 u |
| B. | 0.043 u |
| C. | 0.05 u |
| D. | 0.06 u |
| Answer» C. 0.05 u | |
| 94. |
Gradient of force-extension graph is |
| A. | variable |
| B. | increasing |
| C. | decreasing |
| D. | force constant |
| Answer» E. | |
| 95. |
Energy in deformed solid is called |
| A. | stress energy |
| B. | potential energy |
| C. | kinetic energy |
| D. | strain energy |
| Answer» E. | |
| 96. |
Density of air is |
| A. | 1 8 of water |
| B. | 1 7 of water |
| C. | 1 45 of water |
| D. | 1 800 of water |
| Answer» E. | |
| 97. |
In s.h.m, velocity at equilibrium position is |
| A. | minimum |
| B. | constant |
| C. | maximum |
| D. | zero |
| Answer» D. zero | |
| 98. |
Units of stress are |
| A. | Newton |
| B. | Joules |
| C. | Pascal |
| D. | Watt |
| Answer» D. Watt | |
| 99. |
Stress is force applied on |
| A. | volume |
| B. | cross sectional area |
| C. | unit length |
| D. | across diagonal |
| Answer» C. unit length | |
| 100. |
Concentration of matter in a material is |
| A. | volume |
| B. | mass |
| C. | density |
| D. | weight |
| Answer» D. weight | |