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Question

A sound wave whose frequency is 220 Hz has a speed of $$440 ms^{-1}$$ in a given medium. Find the wavelength of the sound.


Solution

Given,
Velocity $$V=440m/s$$
Frequency $$n=220 Hz$$ 
Wavelength $$\lambda=?$$
we have two equations
$$V=\lambda \times n$$
$$440=\lambda \times 220$$
$$\lambda=\cfrac{440}{220}=2m$$
wavelengthis $$2m$$

Physics

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