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Question
Change in temperature of the medium changes ______.
Options
frequency of sound waves.
amplitude of sound waves.
wavelength of sound waves.
loudness of sound waves.
Solution
Change in temperature of the medium changes wavelength of sound waves.
Explanation:
Speed of sound wave in a medium `v ∝ sqrt(T)` (where T is the temperature of the medium)
Clearly, when temperature changes speed also changes.
As v = vλ
Where v is the frequency and λ is the wavelength.
Frequency (v) remains fixed
⇒ v ∝ λ or λ ∝ v
As does not change. so wavelength (λ) changes.
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