Question

Define critical angle of incidence. State its expression​

Answer 1

Answer:

• The Critical Angle Derivation
• The Critical Angle DerivationSo the critical angle is defined as the angle of incidence that provides an angle of refraction of 90-degrees. Make particular note that the critical angle is an angle of incidence value. For the water-air boundary, the critical angle is 48.6-degrees.

Explanation:

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Answer 2

Answer:

Heya here's ur answer .in the attachment..

Hope it helps. ^-^