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PhysicsWave on StringEquation/graphMedium2 minPYQ_2020
PhysicsMediumsingle choice

A uniform thin rope of length12 mand mass6 kghangs vertically from a rigid support and a block of mass2 kgis attached to its free end. A transverse short wave train of wavelength6 cmis produced at the lower and the rope. What is the wavelength of the wave train (incm) when it reaches the top of the rope?

Options:

Answer:
C
Solution:

V=

V1λ1=V2λ2

λ2=V2V1λ1=T2T1λ1T2=8gTop

8g2gλ1

T1=2gBottom=2λ1=12cm

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Equation/graph
2mℹ️ Source: PYQ_2020

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