What is the term used to describe the distance between consecutive crests or troughs of a wave?

How can light energy travel through space?

Calculate the wavelength of a wave with a frequency of 6.00 x 10¹⁴ Hz. (Speed of light = 3.00 x 10⁸ m/s)

Calculate the frequency of a wave with a wavelength of 4.00 x 10^-7 meters. (Speed of light = 3.00 x 10⁸ m/s)

What happens to the energy of electromagnetic radiation if its frequency is doubled?