Electromagnetic Spectrum; Frequency and Wavelength

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes visible light, radio waves, X-rays, and more, organized by wavelength and frequency.

Front

What is wavelength?

Back

Wavelength is the distance between successive crests of a wave, typically measured in meters.

Front

What is frequency?

Back

Frequency is the number of waves that pass a given point in one second, measured in hertz (Hz).

Front

How are frequency and wavelength related?

Back

Frequency and wavelength are inversely related; as the wavelength increases, the frequency decreases, and vice versa.

Front

What type of radiation has the longest wavelength?

Back

Radio waves have the longest wavelength in the electromagnetic spectrum.

Front

What type of radiation has the shortest wavelength?

Back

X-rays have the shortest wavelength in the electromagnetic spectrum.

Front

What is the speed of light?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).

Front

What happens to light when it passes through a prism?

Back

When light passes through a prism, it is refracted and separated into its component colors, creating a spectrum.

Front

What is the photoelectric effect?

Back

The photoelectric effect is the phenomenon where electrons are emitted from a material when it is exposed to light of sufficient frequency.

Front

What are photons?

Back

Photons are particles of light that carry energy and momentum, and are the basic units of electromagnetic radiation.