The driver of a car travelling with speed $30\,\,{\mkern 1mu} {\mkern 1mu} metres{\mkern 1mu} {\mkern 1mu} per\,\,second$ towards a hill sounds a horn of frequency $600{\mkern 1mu} {\mkern 1mu} \,\,Hz$. If the velocity of sound in air is $330\,\,metres{\rm{ }}per{\rm{ }}second $, the frequency of the reflected sound as heard by the driver isFailed to load question data. Please try again later.
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