The minimum angle of incidence at which the light ray may strike the interface of two media and result in an angle of refraction of 90 degrees or greater. ∙ A. optimum angle ∙ B. angle of refraction ∙ C. refracted angle ∙ D. critical angle

The minimum angle of incidence at which the light ray may strike the interface of two media and result in  an angle of refraction of 90 degrees or greater.
∙ A. optimum angle
∙ B. angle of refraction
∙ C. refracted angle
∙ D. critical angle
by

1 Answer

Answer :

D. critical angle
by

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