Concept explainers
To Explain: The reason for not seeing a laser beam going across the room unless there is fog, chalk dust, or a mist in the air.
Explanation of Solution
Introduction:
The human eye can see the objects when the light reflected from the object enters the eyes. The laser light that passes in a vacuum never reaches the eye because the light never scatters.
Explanation:
When traveling through the vacuum, laser light beam is invisible unless it strikes directly into the human eye. When the laser strikes on any surface and scatters then only the light is visible to the human eye.
If the room is filled with fog, chalk dust or mist in the air, the human eye can see the laser beam because the fog or chalk dust scatters/reflects the light. If laser light can’t hit anything, there is nothing that will reach the eye.
Conclusion:
The human eye can’t see the laser light until it hits and reflects from any medium.
Chapter 28 Solutions
Conceptual Physics: The High School Physics Program
Additional Science Textbook Solutions
College Physics (10th Edition)
Physics: Principles with Applications
The Cosmic Perspective (8th Edition)
Essential University Physics: Volume 2 (3rd Edition)
University Physics Volume 2
College Physics: A Strategic Approach (3rd Edition)
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON