Q.

Sound wave represented as a displacement wave travels in positive x – direction & y – axis represents particle’s displacement. Match list I with list II

Moderate

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A– P,S B– P,S C–R D– Q,S

A–R B– Q,S C–R D– Q,S

A– R B– P,S C–R D– P,S

A– R B– P,S C–R D– Q,S

answer is 4.

(Detailed Solution Below)

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Detailed Solution

Vparticle=−Vwave∂y∂xAt point 1, slope is zero. Therefore, velocity of particle =-slope=0At point 2, slope is -ve, therefore velocity of particle =-slope=-(-ive)= +ive. acceleration=0At point 3, slope is zero, therefore velocity of particle = - slope =0At point 4, slope is +ive, therefore velocity=-slope=-ive and acceleration =0

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