Suppose a sound wave and an
To check that whether a sound wave or an electromagnetic wave has longer wavelength when both have same frequency.
Answer to Problem 42A
An electromagnetic wave has longer wavelength than a sound wave when both have same frequency.
Explanation of Solution
Introduction:
For any wave, the relation between speed, frequency and wavelength is given as follows;
Since it is given that frequency is same for both waves so wavelength becomes directly proportional to speed of the wave. And it is known that the speed of an electromagnetic wave (
Conclusion:
Thus, an electromagnetic wave has longer wavelength than a sound wave when both have same frequency.
Chapter 26 Solutions
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