Electromagnetic Spectrum

Question 1

Electromagnetic spectrum

Answer 1

Broad band of energies resulting from the electron motion.

Question 2

Astronomy use

Answer 2

Astronomers use spectrometers to study light emitted celestial objects. Colors we see have a specific wavelength and frequency.

A photon brings an electron from ground stage to an excited state. When the electron goes back to its ground state it emits a light flash.