which of these electromagnetic waves has the greatest wavelength?

a. microwaves
b. x-rays
c. visible light
d. infrared light

1 answer

Among the options provided, microwaves have the greatest wavelength.

In order from longest to shortest wavelength, the order is as follows:

  1. Microwaves
  2. Infrared light
  3. Visible light
  4. X-rays

So the answer is (a) microwaves.