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Question : 13 of 17

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A car sounding a horn of frequency

1000\,\text{Hz}

passes a stationary observer. The ratio of frequencies of the horn noted by the observer before and after passing of the car is

11 : 9

. The speed of car is (Speed of sound

v=340\,\text{ms}^{-1}

[AP EAPCET 21 May 2024 Shift 1]

$34\,\text{ms}^{-1}$
$17\,\text{ms}^{-1}$
$170\,\text{ms}^{-1}$
$340\,\text{ms}^{-1}$

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