1. What is the use of pinhole? Is it necessaryto use it ?2. Define beam splitter.3. Why we use He-Ne laser to track the path of invisible laser like Nd:YAG laser?4. What are the advantages of alignment?

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Answered: 1. What is the use of pinhole? Is it…

Science

Physics

1. What is the use of pinhole? Is it necessary to use it ? 2. Define beam splitter.

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter10: Atomic Physics

Section: Chapter Questions

Problem 37Q

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The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.

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1. What is the use of pinhole? Is it necessary
to use it ?
2. Define beam splitter.
3. Why we use He-Ne laser to track the path of invisible laser like Nd:YAG laser?
4. What are the advantages of alignment?

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