Question

3. What kinds of electromagnetic waves have the lowest frequencies? What kinds have the highest frequencies?​

Answer 1

The electromagnetic waves with the lowest frequencies are the ones we call "radio" waves.

The electromagnetic waves with the highest frequencies are the ones we call "gamma rays".

In between those are all the others . . . the microwaves, the heat ('thermal') waves, the infrared waves, the light waves, the ultraviolet waves, and the X-rays.

Answer 2

Step-by-step explanation:

from highest to lowest frequency

gamma-ray, x-ray, ultraviolet, visible light, infrared, microwave, radio

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