A certain prism is found to produce a minimum deviation of 38° It produces a deviation of 44^@ when the angle of incidence is either 42^@ or 62^@. What is the angle of incidence when it is undergoing minimum deviation?

A certain prism is found to produce a minimum deviation of 38° It pro

1.	A certain prism is found to produce a minimum deviation of 38° It produces a deviation of 44^@ when the angle of incidence is either 42^@ or 62^@. What is the angle of incidence when it is undergoing minimum deviation?
Answer» `49^@` `30^@` `60^@` `40^@` SOLUTION :`d=I + C-A ` `d= 42^@ +62^@-A ` `44^@= 104 -A ` `A=60^@` `D-m= 2i-A ` ` 98^@= 2 I - 60^@` ` 98^@ = 2i implies I = 49^@`

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A certain prism is found to produce a minimum deviation of 38° It produces a deviation of 44^@ when the angle of incidence is either 42^@ or 62^@. What is the angle of incidence when it is undergoing minimum deviation?

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