Physics - Questions (Section-1)
13If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same
A. velocityB. momentum
C. acceleration D. kinetic energy
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14Let a thin capillary tube be replaced with another tube of insufficient length then, we find water
A. will overflowB. will not rise
C. depressed D. change its meniscus
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15Metals are good conductors of electricity because
A. they contain free electronsB. the atoms are lightly packed
C. they have high melting point D. All of the above
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16Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?
A. Pressure and Young's modulesB. Planck's constant and Angular momentum
C. Impulse and moment of force D. Force and rate of change of linear momentum
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17Pick out the scalar quantity
A. forceB. pressure
C. velocity D. acceleration
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18Rectifiers are used to convert
A. Direct current to Alternating currentB. Alternating current to Direct current
C. high voltage to low voltage D. low voltage to high voltage
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