A laser beam has intensity I₀.
a. What is the intensity, in terms of I₀, if a lens focus...
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Physics, 27.02.2020 04:15 INEEDHELP6845
A laser beam has intensity I₀.
a. What is the intensity, in terms of I₀, if a lens focuses the laser beam to 1/10 its initial diameter?
b. What is the intensity, in terms of l₀, if a lens defocuses the laser beam to 10 times its initial diameter?
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Answers: 3
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