Question:
Example 2 A laser beam has a power of 100 mW and an aperture
Last updated: 6/19/2023
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Example 2 A laser beam has a power of 100 mW and an aperture of 4 x 10 3 m It emits light of wavelength 6000 A The beam is focussed with a lens of focal length 0 1 m Calculate the intensity of the image