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A point source of light is 82 cm below the surface of water. Find the diameter of the largest circle through which light can emerge out of water.

A point source of light is 82 cm below the surface of water. Find the diameter of the largest circle through which light can emerge out of water.

Grade:10

1 Answers

GAGANDEEP SINGH
46 Points
7 years ago
Apply the concept of total internal reflection at the surface of water.The circle so formed is known as circle of illuminance.

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