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Question: A wave pulse is generated in a string that lies along an x-axis. At the points A and B, as shown in ...

A wave pulse is generated in a string that lies along an x-axis. At the points A and B, as shown in figure, if RA and RB are ratio of wave speed to the particle speed respectively then :

A

RA>RB

B

RB>RA

C

RA = RB

D

Information is insufficient to decide.

Answer

RA>RB

Explanation

Solution

Slope at any point on y-x curve in wave motion represents ratio of particle speed to wave speed. slope B > slope A hence RA > RB.