A radio wave has a frequency of 100 MHz What is... - SS2 Physics Electromagnetic Waves Question
A radio wave has a frequency of 100 MHz. What is its wavelength?
A
3 × 108 m
B
3 × 104 m
C
3 × 106 m
D
3 × 102 m
correct option: b
Explanation: The speed of light in a vacuum is approximately 3 × 108 m/s. To find the wavelength, we use the formula wavelength = speed of light/frequency. Substituting the given values, we get wavelength = 3 × 108 m/s / (100 × 106 Hz) = 3 × 104 m.
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