27. What is the wavelength of radio waves that have a frequency of 88.5 MHz?1 point3.4 m8.9 nm0.30 m300 nm
Question
27. What is the wavelength of radio waves that have a frequency of 88.5 MHz?
1 point
- 3.4 m
- 8.9 nm
- 0.30 m
- 300 nm
Solution
To find the wavelength of a radio wave, you can use the formula for the speed of light, which is:
Speed of light = Wavelength * Frequency
The speed of light is approximately 3.00 * 10^8 meters per second. The frequency given is 88.5 MHz, which is 88.5 * 10^6 Hz (because 1 MHz = 10^6 Hz).
Rearranging the formula to solve for wavelength gives:
Wavelength = Speed of light / Frequency
Substituting the given values into this formula gives:
Wavelength = (3.00 * 10^8 m/s) / (88.5 * 10^6 Hz) = 3.39 meters
So, the wavelength of radio waves with a frequency of 88.5 MHz is approximately 3.4 meters.
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