Electromagnetic Spectrum Concepts

Front

What is the wavelength of light emitted by a helium laser?

Back

633 nm

Front

How do you calculate the frequency of light?

Back

Frequency (f) = Speed of Light (c) / Wavelength (λ) where c = 3 x 10^8 m/s.

Front

What is the frequency of light with a wavelength of 633 nm?

Back

3.9 x 10^16 Hz

Front

What is the Planck-Einstein relation?

Back

E = hv, where E is energy, h is Planck's constant, and v is frequency.

Front

What does the acronym ROY G BIV represent?

Back

It represents the colors of visible light: Red, Orange, Yellow, Green, Blue, Indigo, Violet.

Front

List the Electromagnetic Spectrum in order of decreasing energy.

Back

Gamma, X-ray, Ultraviolet, Visible Light, Infrared, Microwave, Radio Wave.

Front

What is the energy of a photon with a frequency of 8.5 x 10^14 Hz?

Back

5.6 x 10^-19 Joules.

Front

What is the speed of light in a vacuum?

Back

Approximately 3 x 10^8 m/s.

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as wavelength increases, frequency decreases.

Front

What type of electromagnetic radiation has the highest energy?

Back

Gamma rays.