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  • A string of mass 3kg is under tension of 400N. The length of the stretched string is 25cm. If the transverse jerk is stuck at one end of the string, how long does the distance take to reach the oth

A string of mass 3kg is under tension of 400N. The length of the stretched string is 25cm. If the transverse jerk is stuck at one end of the string, how long does the distance take to reach the other end?

Option: 1

0.047s


Option: 2

0.055s


Option: 3

0.034s


Option: 4

0.065s


Answers (1)

best_answer

Speed of transverse wave=\sqrt{\frac{T}{\mu}}=\sqrt{\frac{400}{m / l}}=\sqrt{\frac{400}{3 / 0.25}}=\sqrt{\frac{400 \times 0.25}{3}}

=5.77m/s

So time taken by disturbance to reach the other end, 

=\frac{0.25}{5.77}=0.047s

 

Posted by

rishi.raj

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