Discussion1- What the reason for the laser divergence?2- Calculate the brightness of 3mw He-Ne laser and 1 cm in diameter?3- The divergence of the laser beam after sending it through a telescope is 10 radWhat is the diameter of the spot formed on the moon surface if the laser is directedtowards the earth? (The distance from earth to the moon is (3.8 x10 km)(the laser beam diameter is 2mm).

as per bartleby i solved 1st question only

Answered: 1- What the reason for the laser…

Engineering

Mechanical Engineering

1- What the reason for the laser divergence?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.11P

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Question

Discussion
1- What the reason for the laser divergence?
2- Calculate the brightness of 3mw He-Ne laser and 1 cm in diameter?
3- The divergence of the laser beam after sending it through a telescope is 10 rad
What is the diameter of the spot formed on the moon surface if the laser is directed
towards the earth? (The distance from earth to the moon is (3.8 x10 km)
(the laser beam diameter is 2mm).

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