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Olympiad workbookNSEPWaves and Sound

A rope of mass m and length L is suspended vertically. A mas M is suspended from bottom of the rope. A transverse wave is produced on the rope, which travels the length of rope in time t choose the correct statement (s)

Options

At =2 L mg ( M + m - M )
BFor m M The time t = mL Mg
CFor M=0 (i.e. no mass hanging) the time t = L g
DTime to travel the lower half of the rope by the wave is less than that to travel the upper half.

Correct answer

B. For m M The time t = mL Mg

Step-by-step solution

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