What is the wavelength of an FM radio signal if the number on the dial reads 99.7 MHz? The speed of light is 3 × 108 m/s. Answer in units of m.

University Physics Volume 2
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ISBN:9781938168161
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Chapter16: Electromagnetic Waves
Section: Chapter Questions
Problem 98AP: A radio station broadcasts its radio waves with a power of 50,000 W. What would be the intensity of...
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What is the wavelength of an FM radio signal
if the number on the dial reads 99.7 MHz?
The speed of light is 3 × 108 m/s.
Answer in units of m.

Expert Solution
Step 1

The wave speed (v) is defined as the distance traveled by a wave per unit time.

Speed v = λ/T 

Frequency f =1/T 

So wavelength =speed /frequency

 

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