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CBSE Class 9 Answered

WHAT HAPPEN WHENTHE SPEED OF SOUND AND THE PRDUCER SAME
Asked by AMRIT09 | 05 Jan, 2019, 01:24: PM
Expert Answer
Observer will hear twice frequency as the frequency of emitter, this is known as doppler effect.  You will study in higher studies.
Answered by Ankit K | 06 Jan, 2019, 09:05: PM
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