The speed of all electromagnetic waves in empty space is 3.00 × 108 m/s. What isthe wavelengthofradio waves emit- ted at 97.9 MHz? Answer in units of m
period = 1/ frequency
wavelength = period * speed
so
wavelength = speed / frequency
Your textbook must have that !!!
Pefcret shot! Thanks for your post!
To find the wavelength of radio waves emitted at 97.9 MHz, we can use the formula:
Wavelength = Speed of Light / Frequency
We know that the speed of all electromagnetic waves in empty space is 3.00 × 10^8 m/s, and the frequency of the radio waves emitted is 97.9 MHz.
First, we need to convert the frequency from megahertz (MHz) to hertz (Hz). Since 1 MHz = 1,000,000 Hz, we can calculate:
Frequency (in Hz) = 97.9 MHz × 1,000,000 Hz/MHz
Frequency = 97,900,000 Hz
Now we can substitute the values into the formula and solve for the wavelength:
Wavelength = (Speed of Light) / (Frequency)
Wavelength = 3.00 × 10^8 m/s / 97,900,000 Hz
Wavelength ≈ 3.06 meters
Therefore, the wavelength of radio waves emitted at 97.9 MHz is approximately 3.06 meters.