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The following figures in the Column-II i...

The following figures in the Column-II indicate the direction of motion of source and the observer match the corresponding graph in Column-I drawn between the apparent frequency. and time `V_0` is the velocity of observer `V_s` the velocity of source, and `n_0` the frequency of the source

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The correct Answer is:
A-qrs; B-pr; C-pr; D-qs
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