905-C: Classify Electromagnetic Waves 1: Color

Every electromagnetic wave has a particular wavelength. For electromagnetic waves within the visible light range, the wavelength determines the color of the electromagnetic wave. In the previous pod, we learned that red has the longest wavelength and violet has the shortest. In this pod, we will quantify this relationship.

All of the electromagnetic waves of visible light have a wavelength between 400 nanometers and 700 nanometers.

Color

Wavelength Range

Red

635 nm – 700 nm

Orange

590 nm – 635 nm

Yellow

560 nm – 590 nm

Green

520 nm – 560 nm

Blue

450 nm – 520 nm

Violet

400 nm – 450 nm

For each electromagnetic wave given, determine what color this wave would have:

A light wave has a wavelength of 458 nanometers. What color is it?
A light wave has a wavelength of 612 nanometers. What color is it?
A light wave has a wavelength of 555 nanometers. What color is it?
A light wave has a wavelength of 678 nanometers. What color is it?
A light wave has a wavelength of 562 nanometers. What color is it?
A light wave has a wavelength of 444 nanometers. What color is it?