A transverse wave is passing through a stretched string with a speed of `20m//s`. The tension in the
Channel: Doubtnut
Date: 2020-01-19

A transverse wave is passing through a stretched string with a speed of `20m//s`. The tension in the string is `20N`. At a certain point P on the string. It is observed that energy is being transferred at a rate of `40mW` at a given instant. Find the speed of point `P`.