Answered: 21. A laser beam is incident on the… | bartleby

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21. A laser beam is incident on the center of
the end face of a cylindrical rod of material
as shown in the sketch. The refractive index
of the rod is √3=1.732. How many internal
reflections does the laser beam experience
before it exits the rod? (
60°
50 cm
n = √3
30 cm

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