A string of length L and mass M hangs freely from a fixed point. Then the velocity of transverse waves along the string at a distance x from the free end is
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a
gL
b
gx
c
gL
d
gx
answer is B.
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Detailed Solution
Velocity v=Tm; where T = weight of part of rope hanging below the point under consideration =MLxg⇒v=MLxgML=xg
A string of length L and mass M hangs freely from a fixed point. Then the velocity of transverse waves along the string at a distance x from the free end is