A 10-W laser emits a beam of light 4.0 mm in diameter. The laser is aimed at
Question:
(a) Just outside the laser
(b) Where it hits the surface of the Moon?
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The crosssectional area of the beam is A r 2 The ...View the full answer
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Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
Question Posted:
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