Light & Color 1

Front

What is the source of light in the natural world?

Back

Light comes from photons released when electrons fall from high to low orbital.

Front

How do you calculate the frequency of radiation given its wavelength?

Back

Use the formula: frequency (f) = speed of light (c) / wavelength (λ).

Front

What is the frequency of radiation emitted by a microwave oven with a wavelength of 0.050 m?

Back

The frequency is 6.00 x 10^9 Hz.

Front

What is the wavelength of a wave if its frequency is known?

Back

Use the formula: wavelength (λ) = speed of light (c) / frequency (f).

Front

Which type of waves are used to keep food warm in a microwave?

Back

Infrared waves are used to keep food warm.

Front

What is the relationship between frequency and wavelength in electromagnetic waves?

Back

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

Front

What is the wavelength of red light with a frequency of 4.751 x 10^14 Hz?

Back

The wavelength of red light is 6.31 x 10^-7 m.

Front

Define 'photon' in the context of light.

Back

A photon is a quantum of light or electromagnetic radiation that carries energy.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 3.00 x 10^8 m/s.

Front

Explain the concept of 'electromagnetic spectrum'.

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, including visible light, radio waves, and X-rays.