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

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^(@)` ANSWER :A

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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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