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How Much Do You Know About the Science of Laser Technology?

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How Much Do You Know About the Science of Laser Technology?

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Questions and Answers

What did Einstein postulate about the incident photons in his 1917 paper?

They have energies equal to the energy of a photon ejected by an excited atom.

They have energies equal to the energy of an excited atom in its lower energy state (correct)

They have energies equal to the energy of an excited atom in its higher energy state

They have energies equal to the energy of a non-excited atom.

What is the full form of the acronym LASER?

Light Absorption by Spontaneous Emission of Radiation

Light Absorption by Stimulated Emission of Radiation

Light Amplification by Spontaneous Emission of Radiation

Light Amplification by Stimulated Emission of Radiation (correct)

What happens to an excited atom when it falls to its lower energy state?

It absorbs a photon in phase with the incident photon that stimulated it.

It emits a photon in phase with the incident photon that stimulated it. (correct)

It absorbs a photon out of phase with the incident photon that stimulated it.

It emits a photon out of phase with the incident photon that stimulated it.

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Description

Test your knowledge of the incredible technology that is laser! From Einstein's postulation to the practical uses in modern society, this quiz will cover all aspects of Light Amplification by Stimulated Emission of Radiation. Brush up on your laser terminology and see how well you understand the fascinating science behind this revolutionary invention.