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The sound source of a ship’s sonar system operates at a frequency of 22.0 kHz. The...

The sound source of a ship’s sonar system operates at a frequency of 22.0 kHz. The speed of sound in water (assumed to be at a uniform ) is (a) What is the wavelength of the waves emitted by the source? (b) What is the difference in frequency between the directly radiated waves and the waves reflected from a whale traveling directly toward the ship at 4.95 m/s. The ship is at rest in the water.

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Answer #1

Here we apply relation between frequency, velocity and wavelength and we also apply Doppler effect in sound.

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