Laser

Laser

University

51 Qs

quiz-placeholder

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Laser

Laser

Assessment

Quiz

Physics

University

Practice Problem

Medium

NGSS
HS-PS4-3, HS-PS1-5

Standards-aligned

Created by

prakasam kavitha

Used 75+ times

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51 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

This situation shows that

light travels in a straight line

light is everywhere

light penetrates certain objects

light is produces by the Sun

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Acronym for LASER is

Light Absorption by Stimulated Emission of Radiation

Light Amplification by Stimulated Emission of Radiation

Light Alteration by Stimulated Emission of Radiation

Light Attenuation by Stimulated Emission of Radiation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements are true?

  1. LASER is used as optical source in single mode fibers.
  2. LASER lights are highly incoherent.

1. is true and 2. is false

1. is false and 2. is true

Both 1 & 2 are true

Both 1 & 2 are false

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Naturally occuring process in a LASER is

Stimulated Emission

Absorption

Spontaneous Emission

Population Inversion

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The process in which the electrons in the ground state are vibrated to the excited states by providing extra energy from energy sources is called as

Population Inversion

Spontaneous emission

Stimulated emission

Pumping

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Light amplification in LASER is achieved by

Population inversion

Stimulated emission

Spontaneous emission

Pumping

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Minimum number of energy states required to achieve population inversion is

1

2

3

4

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