A radio wave has a wavelength of 150m. If the velocity of...
A radio wave has a wavelength of 150m. If the velocity of radio waves in free spaces is 3 x 108 ms−1, calculate the frequency of the radio wave
4.50 x 1010Hz
5.0 x 109Hz
4.5 x 109Hz
2.0 x 106Hz
Correct answer is D
f = Vλ=3×108150
= 2.0 x 106 Hz
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