A certain FM radio station broadcasts at 90.5 MHz or 9.05 x 107 Hz. The radio wave travels at the speed of light, what is its wavelength?
Answers
Wavelength is 3.315 m if Radio frequency is 90.5 MHz or 9.05 x 10⁷ Hz and travel with speed of light
Given :
- A certain FM radio station broadcasts at 90.5 MHz or 9.05 x 10⁷ Hz.
- The radio wave travels at the speed of light,
To Find :
- Wavelength
Solution:
Formula to be used
Wave length = Speed / Frequency
λ = c/f
c = speed of light = 3 x 10⁸ m/s
f = Frequency = 9.05 x 10⁷ Hz
λ = Wavelength in m
λ = 3 x 10⁸ /9.05 x 10⁷
λ = 30/9.05
λ = 30/9.05
λ = 3.315 m
Wavelength is 3.315 m if Radio frequency is 90.5 MHz or 9.05 x 10⁷ Hz and travel with speed of light
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