Question

The figure shows an instantaneous profile of a rope carrying a progressive wave moving from left to right, then

(a) the phase at $A$ is greater than the phase at $B$
(b) the phase at $B$ is greater than the phase at $A$
(c) A is moving upwards
(d) $B$ is moving upwards

• A. a & c
• B. a & d
• C. b & c
• D. b & d

Answer 1

Answer: (B)

from figure $A$ is moving down $\&B$ is moving up and the phase at $A$ is greater the phase at $B$.