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JEE Main Physics Class 11 Waves Part 1 Questions

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Question : 72

Total: 100

A and B are two sources generating sound waves. A listener is situated at C. The frequency of the source at A is 500 Hz. A, now, moves towards C with a speed 4 m/s. The number of beats heard at C is 6. When A moves away from C with speed 4 m/s, the number of beats heard at C is 18. The speed of sound is 340 m/s. The frequency of the source at B is :

[Online April 22, 2013]

500 Hz
506 Hz
512 Hz
494 Hz

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