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Question: Answered & Verified by Expert
Change in temperature of the medium changes
PhysicsWaves and Sound
Options:
  • A
    frequency of sound waves
  • B
    amplitude of sound waves
  • C
    wavelength of sound waves
  • D
    loudness of sound waves
Solution:
1378 Upvotes Verified Answer
The correct answer is:
wavelength of sound waves
As we know that,
$$
v_t=v_0(1+0.61 t)
$$
Speed of sound wave in a medium $v \propto \sqrt{T}$
(where $T$ is temperature of the medium)
Clearly, when temperature increase then the speed also increase as frequency does not change during propogation of wave by formula.
As, $v=v \lambda$
where $v$ is frequency and $\lambda$ is wavelength.
Frequency $(v)$ remains fixed,
$v \propto \lambda$ or $\lambda \propto v$
So velocity $v$ and wavelength $(\lambda)$ both increases.

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