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JEE Main 30 June 2022 Shift 1 Solved Paper

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Question : 52

Total: 90

An employee of a factory moving away from his workplace by a car listens to the siren of the factory. He drives the car at the speed of 72kmh−1 in the direction of wind which is blowing at 72kmh−1 speed. Frequency of siren is 720‌Hz. The employee hears an apparent frequency of ______Hz.
(Assume speed of sound to be 340ms−1 )

[30-Jun-2022-Shift-1]

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