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A source of sound of frequency 1000 Hzmo...

A source of sound of frequency 1000 Hzmoves to the right with a speed of 50 m/s relative to the ground. To its right is a reflecting surface moving to the left as shown in figure. Speed of the sound in air is 330 m/s.

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The correct Answer is:
(a)R, (b)S, (c )P,(d)Q
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