Question

find the critial angle of glass and water with respect to air . (experiment)
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Answer 1

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For the water-air boundary, the critical angle is 48.6-degrees. For the crown glass-water boundary, the critical angle is 61.0-degrees.

Answer 2

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☛For the water-air boundary, the critical angle is 48.6-degrees. For the crown glass-water boundary, the critical angle is 61.0-degrees.