Physics-
General
Easy
Question
The figure shows four progressive waves A, B, C & D . It can be concluded from the figure that with respect to wave A:
- the wave C is ahead by a phase angle of
/2 & the wave B lags behind by a phase angle /2
- the wave C lags behind by a phase angle of /2 & the wave B is ahead by a phase angle of /2
- the wave C is ahead by a phase angle of & the wave B lags behind by the phase angle of
- the wave D lags behind by a phase angle of & the wave B is ahead by a phase angle of .
/2 & the wave B lags behind by a phase angle /2
/2 & the wave B is ahead by a phase angle of /2
& the wave B lags behind by the phase angle of
& the wave B is ahead by a phase angle of .
The correct answer is: the wave C lags behind by a phase angle of /2 & the wave B is ahead by a phase angle of /2
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