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Wave Equation

a source of s...

Question

a source of sound frequency 600 hz is placed inside water .the speed of sound in water is 1500m/s and in air is 300m/s.the frequency if sound recorded by an observer ,who is standing in air is.

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Solution

The frequency made under water will be the same when heard in air outside the water, because frequency not depends on the propagation medium, but it depends on the vibration source . Answer =600 Hz

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