Q. 14

During propagation of a plane progressive mechanical wave
A. All the particles are vibrating in the same phase.

B. Amplitude of all the particles is equal.

C. Particles of the medium executes S.H.M.

D. Wave velocity depends upon the nature of the medium.

Answer :

C. Particles of the medium executes S.H.M.

D. Wave velocity depends upon the nature of the medium.


Explanation: When a move motion passes through any medium, particles of that medium vibrates harmonically at their position. The particles of medium oscillate with same frequency and the amplitude of the medium particles is also same. Velocity of a wave motion of a particular medium is constant and they only depend on the nature of the medium not on the frequency, wavelength or intensity of the wave.

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