Of the following properties of a wave, the one that is independent of the other is its

A) amplitude
B) velocity
C) wavelength
D) frequency

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It is more difficult to walk on a sandy road than on a concrete road because

A) sand is soft and concreter is hard
B) the friction between sand and feet is less than that between concrete and feet
C) the friction between sand and feet is more than that between concrete and feet
D) the sand is grainy but concrete is smooth

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out of the following, which is not emitted by radioactive substance?

A) Electrons
B) Electromagnetic radiations
C) Alpha particles
D) Neutrons

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Light year is a unit of

A) time
B) distance
C) light
D) intensity of light

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If 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) velocity
B) momentum
C) acceleration
D) kinetic energy

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