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प्रश्न
A sound wave has a frequency of 200 Hz and a speed of 400 ms–1 in a medium. Find the wavelength of the sound wave.
उत्तर
A sound wave of frequency, n = 200 Hz
Speed, v = 400 ms-1
The wavelength of the sound wave, λ = `"v"/"n"`
λ = `400/200` = 2 m.
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