Question

. A uniform string of length 20m is suspended from a rigid support. A short wave pulse is introduced at its lowest end. It starts moving up the string. The time taken to reach the support is: (take g = 10 ms–2)

(1) 2 s

(2) 2√2 s

(3) √2s

(4) 2π√2 s

can any body solve this for me... please.... don't post irrelevant answers.... will be reported​

Answer 1

A uniform string of length 20 m is suspended from a rigid support. Such that the time taken to reach the support,

The tension in a string of linear mass density λ as a function of length x measured from the free end is T

x

=λxg

The velocity of wave when it is at a position x is

2 √2 s is the answer of your questions

Answer 2

Here is ur answer + explanation In the photo hope it helps u dear !!!