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A source and a detector move away from each other in absence of wind with a speed of 20 m/s

Q. A source and a detector move away from each other in absence of wind with a speed of 20 m/s with respect to the ground. If the detector detects a frequency of 1800 Hz of the sound coming from the source, then the original frequency of the source considering the speed of sound in air 340 m/s will be…….. Hz.       (JEE-2021)

Aditya Bhatt Answered question 30 January 2024
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(JEE-2021)
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Official Ans. by NTA (2025)

Aditya Bhatt Answered question 30 January 2024
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