Concept explainers
Why it is inappropriate to consider low-frequency sound wave as travelling rays and why is the ray approximation more appropriate for high-frequency sound and for light.
Answer to Problem 1FTD
If the light wave or sound wave interacts with objects which is much larger than the
Explanation of Solution
For a low frequency sound wave it would have longer wavelength. In the case of objects those are larger than the wavelength as that of the ray, interact with wave, then the wave could possible to consider as a ray. But in this case sound wave has longer wavelength and hence it cannot be considered as a wave.
In the second case the high-
Conclusion:
Therefore, If the light wave or sound wave interacts with objects which is much larger than the wavelength of the light or sound wave could possible to considered as a wave.
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Chapter 30 Solutions
Essential University Physics (3rd Edition)
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