MCQ
Change in temperature of the medium changes:
- AFrequency of sound waves.
- BAmplitude of sound waves.
- ✓Wavelength of sound waves.
- DLoudness of sound waves.
✓
Answer
Correct option: C.
Wavelength of sound waves.
Speed of sound wave in amedium $\text{v}=\sqrt{\frac{\gamma\ \text{RT}}{\text{M}}}.$
here $\gamma,\text{R}$ and $M$ are constent.
Hence, $\text{v}\propto\sqrt{\text{T}} ($where $T$ is tempreature of the medium$)$
It mence when temprature changes, speed also changes.
As, $\text{v}=\text{f}\lambda,$ where $f$ is frequency and $\lambda$ is wavelength.
As frequency $(f)$ remains fixed, $\text{v}\propto\lambda$ or $\lambda$ hence wavelength $(\lambda)$changes.
Hence verifies the option $(c).$
here $\gamma,\text{R}$ and $M$ are constent.
Hence, $\text{v}\propto\sqrt{\text{T}} ($where $T$ is tempreature of the medium$)$
It mence when temprature changes, speed also changes.
As, $\text{v}=\text{f}\lambda,$ where $f$ is frequency and $\lambda$ is wavelength.
As frequency $(f)$ remains fixed, $\text{v}\propto\lambda$ or $\lambda$ hence wavelength $(\lambda)$changes.
Hence verifies the option $(c).$
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