As the frequency of electromagnetic waves increases, what happens to the wavelength? it increases. it decreases. it fluctuates. it remains constant.

It decreases

Explanation: From Planck's equation:

  (1)

E = energy

h= planck's constant

= frequency

From Einstein equation:

   (2)

= wavelength

from (1) and (2)

As frequency and wavelength are inversely related, if frequency increases, wavelength decreases and vice versa.