Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.

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Chapter 11

NCERT

Class 9

Science

Solutions

3. Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.

Question:

Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.

Answer:

Given: Frequency of sound wave

v = 220 Hz

Speed of sound v = 440 m/s

Wavelength of sound wave l = v/V

= 440 m/s / 220 Hz

= 2m

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