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48 Science -- Sound

Write a difference between fathometer and sonometer. A ship transmit a sound to the sea of depth 2250 m. If the echo is received after 3 seconds, calculate the speed of sound in water.

Write a difference between fathometer and sonometer. A ship transmit a sound to the sea of depth 2250 m. If the echo is received after 3 seconds, calculate the speed of sound in water.

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Solution:

Given,

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We know,

Velocity = Wavelength * Frequency

or, Frequency = Velocity / Wavelength

= 350 / 5

= 70 Hertz

Hence, the required frequency of the sound wave is 70 Hertz.

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