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21.
A laser operates at 5 x 1014 Hz and has an aperture of 5 x 10-3. What is the angular spread of the beam?
Suggested solution:


Optics Problems - Numerical 21 |
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A laser operates at 5 x 1014 Hz and has an aperture of 5 x 10-3. What is the angular spread of the beam?


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