A horizontal laser beam of wavelength 632.8 nm has a circular cross - section 2.00 mm in diameter. A rectangular aperture is to be placed in the center of the beam so
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Schematic view of the laser setup (a). The laser beam is focused on the... | Download Scientific Diagram
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In above figure, a laser beam of power 4.60W and diameter D = 2.60mm is directed upward at one circular face (of diameter d<2.60mm ) of a perfectly reflecting cylinder. The cylinder