A pulse of a wave train travels along a stretched string and reaches the fixed end of the string.it will be reflected back with

Options

A. a phase change of `180^(@)` with velocity reversed
B. the same phase as the incident pulse with no reversal
C. a phase change of `180^(@)` with no reversal of velocity
D. the same phase as the incident pulse but with velocity reversed

Answer

A

Explanation

A pulse of a wave train when travels along a stretched string and reaches the fixed end of the string, then it will be reflected back to the same medium and the reflected ray suffers a phase change of `pi` with the incident wave and wave velocity after reflection gets reversed.