A wave pulse on a string has the dimensions shown in figure. The wave speed is `v=1 cm//s`.

(a) If point O is a fixed end, draw the resultant wave on the string at t=3 s and t=4 s.
(b) Repeat part (a) for the case in which O is a free end.

Answer

A, C, D

Explanation

(a) For fixed end.

By the superposition of these two pulses we
will get the resultant. But only to the left of
point O, where string is actually present.
(b) For free end
.