A sound wave having a wavelength of $2 c m$ is travelling in water. If the velocity of sound in water is $1600 m s^{- 1}$ . What is the frequency of the sound wave?

8000 H z

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80000 H z

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70000 H z

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16000 H z

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Solution

The correct option is B $80000 H z$
Given:
Speed of sound wave, $v = 1600 m s^{- 1}$
Wavelength, $λ = 2 c m = 0.02 m$

Let $f$ be the frequency of the wave.

Speed of sound is given by:
$v = f λ$
$f = \frac{1600 m s^{- 1}}{0.02 m} = 80000 H z .$

Frequency of the sound wave is $80000 H z$ .

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A sound wave having a wavelength of 2 cm is travelling in water. If the velocity of sound in water is 1600 ms−1. What is the frequency of the sound wave?

The correct option is B 80000 HzGiven: Speed of sound wave, v=1600 ms−1 Wavelength, λ=2 cm=0.02 m Let f be the frequency of the wave. Speed of sound is given by: v=fλ f=1600 ms−10.02 m=80000 Hz. Frequency of the sound wave is 80000 Hz.

A sound wave having a wavelength of $2 c m$ is travelling in water. If the velocity of sound in water is $1600 m s^{- 1}$ . What is the frequency of the sound wave?

The correct option is B $80000 H z$
Given:
Speed of sound wave, $v = 1600 m s^{- 1}$
Wavelength, $λ = 2 c m = 0.02 m$

Let $f$ be the frequency of the wave.

Speed of sound is given by:
$v = f λ$
$f = \frac{1600 m s^{- 1}}{0.02 m} = 80000 H z .$

Frequency of the sound wave is $80000 H z$ .