A uniform string oflength $20\ m$ 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 supports is (take $g= 10 $ $ms^{-2}$ )

  • [JEE MAIN 2016]
  • A

    $2$$\sqrt 2 s$

  • B

    $\sqrt 2 s$

  • C

    $\;2\pi \sqrt 2 s$

  • D

    $2s$

Similar Questions

If the initial tension on a stretched string is doubled, then the ratio of the initial and final speeds of a transverse wave along the string is :

  • [NEET 2022]

Which of the following statements is incorrect during propagation of a plane progressive mechanical wave ?

A sound is produced by plucking a string in a musical instrument, then

Obtain the equation of speed of transverse wave on tensed (stretched) string.

A string of mass $2.50 \;kg$ is under a tension of $200\; N$. The length of the stretched string is $20.0 \;m$. If the transverse jerk is struck at one end of the string, how long (in $sec$) does the disturbance take to reach the other end?