MCQOPTIONS
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MCQOPTIONS
This section includes 100 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Heat supplied to a system is measured in ______. |
| A. | kilowatts |
| B. | degrees kelvin |
| C. | amperes |
| D. | joules |
| Answer» E. | |
| 52. |
In MKS system, the unit of time is |
| A. | hour |
| B. | second |
| C. | minute |
| D. | day |
| Answer» C. minute | |
| 53. |
‘mho’ is the unit of ______ of a substance. |
| A. | conductance |
| B. | resistivity |
| C. | conductivity |
| D. | resistance |
| Answer» B. resistivity | |
| 54. |
Angstrom is a unit of |
| A. | Wavelength |
| B. | Energy |
| C. | Frequency |
| D. | Velocity |
| E. | None of the above/More than one of the above |
| Answer» B. Energy | |
| 55. |
Fermi is a unit of? |
| A. | Length |
| B. | Mass |
| C. | Area |
| D. | Time |
| Answer» B. Mass | |
| 56. |
1 electron volt (eV) = __________ J. |
| A. | 9 × 10-9 |
| B. | 9 × 10-19 |
| C. | 1.6 × 10-9 |
| D. | 1.6 × 10-19 |
| Answer» E. | |
| 57. |
1 kWH is unit of |
| A. | Time |
| B. | Power |
| C. | Energy |
| D. | Stress |
| Answer» D. Stress | |
| 58. |
One micron is equal to: |
| A. | 0.1 mm |
| B. | 0.01 mm |
| C. | 10–3 m |
| D. | 10–6 m |
| Answer» E. | |
| 59. |
One 'Newton' unit of force is equal to _____? |
| A. | 1 kg. m/s2 |
| B. | 0.5 kg. m/s2 |
| C. | 4.9 kg. m/s2 |
| D. | 9.8 kg. m/s2 |
| Answer» B. 0.5 kg. m/s2 | |
| 60. |
1 HP = ______ kW |
| A. | 0.554 |
| B. | 0.653 |
| C. | 0.745 |
| D. | None of these |
| Answer» D. None of these | |
| 61. |
Light year is a unit for measurement of |
| A. | Age of universe |
| B. | Very small time intervals |
| C. | Very high temperature |
| D. | Very large distance |
| Answer» E. | |
| 62. |
1 m3 is equal to |
| A. | 10,000 litres |
| B. | 1000 litres |
| C. | 500 litres |
| D. | 100 litres |
| Answer» C. 500 litres | |
| 63. |
For defining the standard metre, wavelength of which material is considered ? |
| A. | Neon |
| B. | Krypton |
| C. | Helium |
| D. | Xenon |
| Answer» C. Helium | |
| 64. |
Length of your arm from the end of your middle finger to your elbow used as nonstandard unit of length is known as ______. |
| A. | Fathom |
| B. | Finger |
| C. | Pace |
| D. | Cubit |
| Answer» E. | |
| 65. |
Light year is the unit of a quantity whose unit can also be |
| A. | second |
| B. | kilogram |
| C. | square metre |
| D. | Angstrom |
| Answer» E. | |
| 66. |
Accuracy of a measuring instrument is expressed as |
| A. | True value-measured value |
| B. | Measured value-true value |
| C. | \(1~-~\left | \frac{true~value~-~measured~value}{true~value} \right |\) |
| D. | \(1~+~\left | \frac{true~value~-~measured~value}{true~value} \right |\) |
| Answer» D. \(1~+~\left | \frac{true~value~-~measured~value}{true~value} \right |\) | |
| 67. |
One barrel of oil is approximately equal to |
| A. | 100 litres |
| B. | 159 litres |
| C. | 225 litres |
| D. | 310 litres |
| Answer» C. 225 litres | |
| 68. |
In both metric and imperial systems, which of the following is/are the types of measurement units?I. Basic unitsII. Derived units |
| A. | Neither I nor II |
| B. | Both I and II |
| C. | Only I |
| D. | Only II |
| Answer» C. Only I | |
| 69. |
Match List I with List-II and select the correct answer using the code given below the list:List IList II(Physical quantity)(Unit)ADistance1MoleBAmount of material2CoulombCAmount of electrical charge3Light YearDEnergy4Watt Hour Code: |
| A. | A - 3, B - 1, C- 2, D - 4 |
| B. | A - 3, B - 2, C- 1, D - 4 |
| C. | A - 4, B - 2, C- 1, D - 3 |
| D. | A - 4, B - 1, C- 2, D - 3 |
| Answer» B. A - 3, B - 2, C- 1, D - 4 | |
| 70. |
Parsec is a unit of which physical quantity? |
| A. | Mass |
| B. | Length |
| C. | Frequency |
| D. | Area |
| Answer» C. Frequency | |
| 71. |
Frequency is measured in |
| A. | hertz |
| B. | meter/ second |
| C. | radian |
| D. | watt |
| E. | None of the above/More than one of the above |
| Answer» B. meter/ second | |
| 72. |
Joule/coulomb is the same as __________. |
| A. | 1 ampere |
| B. | 1 kWh |
| C. | 1 KW |
| D. | 1 Volt |
| Answer» E. | |
| 73. |
A light year is a unit of measurement of |
| A. | very large distances |
| B. | time interval in years |
| C. | amount of light received on earth in a year |
| D. | mass of atoms |
| Answer» B. time interval in years | |
| 74. |
One fermi meter is equal to |
| A. | 10-15 m |
| B. | 1015 m |
| C. | 10-12 m |
| D. | 1012 m |
| Answer» B. 1015 m | |
| 75. |
Light year is a unit of: |
| A. | Distance |
| B. | Time |
| C. | Mass |
| D. | Intensity of light |
| Answer» B. Time | |
| 76. |
25.4 mm is equal to |
| A. | 10 inches |
| B. | 0.01 inch |
| C. | 1 inch |
| D. | None of these |
| Answer» D. None of these | |
| 77. |
Error caused by the act of measurement on the physical system being tested is |
| A. | Hysteresis error |
| B. | Random error |
| C. | Systematic error |
| D. | Loading error |
| Answer» E. | |
| 78. |
Candela unit according to system international is a |
| A. | derived unit |
| B. | supplementary unit |
| C. | international unit |
| D. | base unit |
| Answer» E. | |
| 79. |
If force (F), acceleration (A), Time (T) are used as fundamental units, the dimensional formula for length will be- |
| A. | [ F0AT2] |
| B. | [ FA0 T2] |
| C. | [ FA0 T0] |
| D. | [FAT] |
| Answer» B. [ FA0 T2] | |
| 80. |
Angstrom is a unit of ________. |
| A. | Decay per second |
| B. | Mass |
| C. | Length |
| D. | Area |
| Answer» D. Area | |
| 81. |
kg m/sec is the unit of |
| A. | Impulse |
| B. | Angular acceleration |
| C. | Capacity of condenser |
| D. | Acceleration |
| Answer» B. Angular acceleration | |
| 82. |
One calorie of heat energy is equivalent to approximately ______ joules of mechanical energy. |
| A. | 0.24 |
| B. | 4.2 |
| C. | 0.48 |
| D. | 2.4 |
| Answer» C. 0.48 | |
| 83. |
1 pound = _____ ounces |
| A. | 20 |
| B. | 12 |
| C. | 18 |
| D. | 16 |
| Answer» E. | |
| 84. |
[M-1L3T-2] are the dimensions of? |
| A. | Gravitational constant |
| B. | Gravitational potential energy |
| C. | Gravitational potential |
| D. | Gravitational intensity |
| Answer» B. Gravitational potential energy | |
| 85. |
______ was known as a unit of measurement of land before the British rule, the size of the land varied, in Bengal the British standardized it to about one-third of an acre. |
| A. | Pace |
| B. | Fathom |
| C. | lick |
| D. | Bigha |
| Answer» E. | |
| 86. |
Match List I with List IIList I(Symbol)List II(Value)(a) da(i) 10-15(b) d(ii) 10-1(c) f(iii) 10-18(d) a(iv) 10 Choose the correct answer from the options given below: |
| A. | (a) - (iv), (b) - (ii), (c) - (i), (d) - (iii) |
| B. | (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii) |
| C. | (a) - (i), (b) - (ii), (c) - (iii), (d) - (iv) |
| D. | (a) - (iv), (b) - (ii), (c) - (iii), (d) - (i) |
| Answer» B. (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii) | |
| 87. |
One yard = ______ inch. |
| A. | 36 |
| B. | 38 |
| C. | 40 |
| D. | 42 |
| Answer» B. 38 | |
| 88. |
If, \( x=a+bt+ct^2 \)x is meters and t in seconds, then the unit of a is: |
| A. | ms-1 |
| B. | m2s |
| C. | m3s-2 |
| D. | m |
| Answer» E. | |
| 89. |
[ML2T-2] are the dimensions of __________. |
| A. | Gravitational constant |
| B. | Gravitational potential |
| C. | Gravitational potential energy |
| D. | Gravitational in tensity |
| Answer» D. Gravitational in tensity | |
| 90. |
One Joule is equal to which of the following? |
| A. | (Newton) . (Meter) |
| B. | (Coulomb) . (Volt)2 |
| C. | (Pascal) . (Meter)1/3 |
| D. | All of the options |
| Answer» B. (Coulomb) . (Volt)2 | |
| 91. |
Match the following:List - IIList - IIa. Electric chargei. Faradb. Electric fieldii. Coulombc. Electric potential iii. Newton/coulombd. Electric capacityiv. Volt |
| A. | a - ii, b - iii, c = iv, d - i |
| B. | a - iii, b - ii, c - i, d - iv |
| C. | a - iv, b - i, c - iii, d - i |
| D. | a - i, b - iv, c - ii, d - iii |
| Answer» B. a - iii, b - ii, c - i, d - iv | |
| 92. |
A_35MM_WIDE_SLIDE_WITH_A_24MM‚ÄÖ√†√∂‚Àւ•36MM_PICTURE_IS_PROJECTED_ON_A_SCREEN_PLACED_12CM_FROM_THE_SLIDE._THE_IMAGE_OF_THE_SLIDE_PICTURE_ON_THE_SCREEN_MEASURES_1M‚ÄÖ√†√∂‚Àւ•1.5M._WHAT_IS_THE_LINEAR_MAGNIFICATION_OF_THE_PROJECTOR-SCREEN_ARRANGEMENT??$# |
| A. | 150.6 |
| B. | 1736 |
| C. | 1524 |
| D. | 41.67 |
| Answer» E. | |
| 93. |
If_the_size_of_an_atom_(_‚âÖ1A_)_were_enlarged_to_the_tip_of_a_sharp_pin_(_‚âÖ10-5_),_how_large_would_the_height_of_Mount_Everest_be?$# |
| A. | 10<sup>7</sup>m |
| B. | 10<sup>8</sup>m |
| C. | 10<sup>10</sup>m |
| D. | 10<sup>9</sup>m |
| Answer» E. | |
| 94. |
In a submarine fitted with SONAR, the time interval between the generation of an ultrasonic wave and the receipt of its echo is 200s. What is the distance of the enemy submarine? The speed of the sound in water is 1.450km/s? |
| A. | 2.811 km |
| B. | 112.5 km |
| C. | 145 km |
| D. | 100 km |
| Answer» D. 100 km | |
| 95. |
The angular diameter of the sun is 1920’’. If the distance of the sun from the earth is 1.5×1011 m, what is the linear diameter of the sun?$ |
| A. | 4.85√ó10<sup>-6</sup> m |
| B. | 1.4√ó10<sup>9</sup>m |
| C. | 2.35√ó10<sup>8</sup> m |
| D. | 1.4√ó10<sup>8</sup>m |
| Answer» C. 2.35‚Äö√†√∂‚àö‚â•10<sup>8</sup> m | |
| 96. |
The moon is observed from two diametrically opposite points A and B on the earth. The angle θ subtended at the moon by the two directions of observation is 1°54’. Given the diameter of the earth to be 1.276×107 m, compute the distance of the moon from the earth.$ |
| A. | 3.84√ó10<sup>8</sup> m |
| B. | 1.276√ó10<sup>7</sup> m |
| C. | 3.84m |
| D. | 1.27m |
| Answer» B. 1.276‚Äö√†√∂‚àö‚â•10<sup>7</sup> m | |
| 97. |
The shadow of a tower standing on a level plane is found to be 50m longer when the sun’s altitude is 30° that when it is 60°. Find the height if the tower.$ |
| A. | 1.732 m |
| B. | 43.3 m |
| C. | 25 m |
| D. | 25‚àö3 m |
| Answer» C. 25 m | |
| 98. |
Which of the following is used to find the depth of the sea-bed? |
| A. | Laser method |
| B. | Sonar method |
| C. | Radar method |
| D. | Reflection or echo method |
| Answer» C. Radar method | |
| 99. |
What is the method for determining the distance of an inferior planet? |
| A. | Kepler’s third law of planetary motion |
| B. | Triangulation method |
| C. | Parallax method |
| D. | Copernicus method |
| Answer» E. | |
| 100. |
Which of the following is an inferior planet to earth? |
| A. | Mercury |
| B. | Saturn |
| C. | Pluto |
| D. | Neptune |
| Answer» B. Saturn | |