Question 3 Page 166 (Right Top) - Chapter 12 Class 9 - Sound

Last updated at April 16, 2024 by

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

Answer 

Speed of sound = 440m/s

Frequency of sound = 220 Hz

 

We know that

Speed of sound = Wavelength x Frequency

Wavelength = Speed of sound/ Frequency

                     = 440/220

                             = 2 m


Wavelength is 2 m .

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