Electromagnetic waves are traveling in the vacuum of space. Calculate the wavelengths of these electromagnetic waves with the following frequencies. (Enter the first wavelength in pm and the second wavelength in cm.)

(a) 2.00 x 1019 Hz

15 pm

Explanation:

Speed of a wave is given as:

Speed = wavelength * frequency

Since electromagnetic waves move at the speed of light, we can calculate the wavelength:

Wavelength = speed/frequency

Wavelength = (3 * 10^8)/(2 * 10^19)

Wavelength = 1.5 * 10^(-11) m

In picometre, pm, wavelength the is 15 pm.