Q 2448280103.     In the adjoining figure `A, B`, and `C` represents three progressive waves. Which of the following statement about the waves is correct?

BCECE 2013 Stage 1
A

Wave C lags behind in phase by `pi/2` from A and B leads by `pi/2`

B

Wave C leads in phase by `pi` from A and B lags behind by `pi`

C

Wave C leads in phase by `pi` from A and lags behind by `pi/2`

D

Wave `C` lags behind in phase by `pi` from `A` and `B` leads by `pi`

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