A ray of light passes from vacuum into a medium of refractive index mu, the angle of incidence is found to be twice the angle of refraction. Then the angle of incidence is:

A ray of light passes from vacuum into a medium of refractive index mu

1.	A ray of light passes from vacuum into a medium of refractive index mu, the angle of incidence is found to be twice the angle of refraction. Then the angle of incidence is:
Answer» `COS^(-1)((MU)/2)` `2COS^(-1)((mu)/2)` `2sin^(-1)(mu))` `2sin^(-1)((mu)/2)` Answer :B

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A ray of light passes from vacuum into a medium of refractive index mu, the angle of incidence is found to be twice the angle of refraction. Then the angle of incidence is:

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