An FM radio station broadcasts at 9 point 2 3 times 10 to the 7th power Hz Given that the radio waves travel at 3 point 0 0 times 10 to the 8th power m/s , what is the wavelength of these waves?
Answer
A
6 point 5 0 m
B
0 point 3 0 8 m
C
3 point 2 5 m
D
2 point 7 7 m
Explanation
Use the wave equation, wavelength = wave speed ÷ frequency. Here, λ = (3.00 × 10⁸ m/s) ÷ (9.23 × 10⁷ Hz) ≈ 3.25 m. The wavelength is 3.25 m, choice C.
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