Answer: Light waves move faster than sound waves, which are longitudinal.
Light waves can also travel through space.
Sound waves, being longitudinal, are slower than light waves, and do not travel through space.
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(a)The frequency of the broadcast is 1.2 × 10⁻¹⁰ Hz.
(b) It is a FM radio station.
(a) The wavelength of electromagnetic radiation = 1 quarter mile
= 0.25 mi
∴ Wavelength = Speed of light / Frequency
λ = v / f
f = v / λ
= (299792.458 m/s ) / 0.25 mi
= 1199169.832 Hz
= 1.2 × 10⁻¹⁰ Hz
Therefore, the frequency of the broadcast is 1.2 × 10⁻¹⁰ Hz.
(b) The station is FM as it ranges in a higher spectrum from 88 to 108 MHz. (OR) 1200 to 2400 bits per second. The signal that is going to be sent in FM modulates the frequency of a radio wave known as the "carrier" or "carrier wave." The phase and amplitude stay constant.
Compared to AM, FM is less prone to interference. However, physical obstructions have an impact on FM broadcasts. Due to its greater bandwidth, FM has better sound quality. twice the result of the frequency variation and the modulating signal frequency.
Learn more about FM here:
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