The frequency of a radio transmitter is 90 megahertz. What is its wavelength?
wavelength = c/(frequency) = 3*10^8/90*10^6
= 3.33 meters
That is a formula you should memorize
Thank you
To find the wavelength of a radio transmitter, you can use the formula:
Wavelength = Speed of light / Frequency
The speed of light is approximately 3 x 10^8 meters per second.
To solve the question:
1. Convert the frequency to hertz by multiplying the value by 10^6, since 1 MHz = 10^6 Hz.
- 90 MHz = 90 x 10^6 Hz = 90,000,000 Hz.
2. Plug the values into the formula:
Wavelength = (3 x 10^8 m/s) / (90,000,000 Hz)
3. Perform the calculation:
Wavelength ≈ 3.33 meters.
Therefore, the wavelength of the radio transmitter with a frequency of 90 megahertz is approximately 3.33 meters.