Math, asked by Vasishta8818, 1 year ago

What does it mean when the angle of refraction is 90?

Answers

Answered by cuteragini28
2
When the angle of incidence in water reaches a certain critical value, the refracted ray lies along the boundary, having an angle of refraction of 90-degrees. This angle of incidence is known as the critical angle; it is the largest angle of incidence for whichrefraction can still occur.
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