Draw a ray diagram to show a right angled isosceles prism may be used to \'\'bend the path of
Channel: Doubtnut
Date: 2020-01-19

Draw a ray diagram to show a right angled isosceles prism may be used to \'\'bend the path of light rays by `90^(@)`. Write the necessary condition in terms of the refractive index of the material of this prism for the ray to bend to `90^(@)`.