waves

Related Questions

• A source of sound emitting a note of frequency 200 Hz moves towards an observer with a velocity v equal to the velocity of sound. If the observer also moves away from the source with the same velocity v, the apparent frequency heard by the observer is

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• Two tuning forks, A and B, give 4 beats per second when sounded together. The frequency of A is 320 Hz. When some wax is added to B and it is sounded with A, 4 beats per second are again heard. The frequency of B is

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• ‘SONAR’ emits which of the following waves

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• Which of the following is different from others

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• The phase difference between the two particles situated on both the sides of a node is

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