Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

10 Questions

1 Views

Laser and Electromagnetic Waves Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the process where atoms in a laser material are pumped to a higher electronic state, allowing an incoming photon to cause the release of excess energy as coherent photons of the same wavelength?

Excitation

Spontaneous emission

Population inversion (correct)

Stimulated emission

What is the function of the mirrored chamber in a laser?

To cool down the lasing medium

To conduct electricity

To absorb energy from the surroundings

To amplify the light and stimulate the emission of other photons (correct)

What distinguishes the LASER light from incandescent and fluorescent light sources?

Temperature

Monochromaticity (correct)

Brightness

Flexibility

What is the power supply used to excite the lasing medium in a LASER capable of delivering?

Up to 10,000 V Signup and view all the answers

Which term refers to the property of LASER light where all the waves travel in straight lines with the same wavelength and are all in phase with one another?

Coherence Signup and view all the answers

What is the word LASER an acronym for?

Radiation: The transfer of energy in the form of rays, waves or particles, often from a central source; also called radiant energy. Signup and view all the answers

What is the lasing medium (gain medium) required for LASER production?

A material that generates the LASER light. Signup and view all the answers

How is a laser beam different from ordinary light beam?

It has a specific wavelength and therefore specific energy. Signup and view all the answers

What are photons in the context of LASER?

Energy packets with no mass that contain a certain amount of energy according to its wavelength. Signup and view all the answers

What is the wavelength range for light as mentioned in the text?

(100 – 10,000 nm) Signup and view all the answers