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A) An FM radio station broadcasts at a frequency of 101.3 MHz. What is the wavelength (m)?
B) What is the frequency (Hz) of a sound source that produces the same wavelength in 20 C air?
Answer:
A) λ = 2.96 m
B) f = 116 Hz
Explanation
For part A)
The wavelength is calculated as:
For part B)
The speed of sound in air at 20 °C is given as 343 m/s. Hence, the frequency is calculated as:
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