What is the minimum value of the refractive index for a `90^(@)-45^(@)-45^(@)` prism which is used to deviate a beam through `90^(@)` by total internal reflection ?

The maximum value of refractive index of a prism which permits the transmission of light through it when the refracting angl e of the prism is 90^@, is given by

The maximum value of refractive index of a prism which permits the transmission of light through it when the refracting angle of the prism is 90^@, is given by

What will be the minimum deviation for an equilateral prism of refractive index root(2) ?

The refractive index of a prism is mu . Find the maximum angle of the prism for which a ray incident on it will be transmitted through other face without total internal reflection.

The refractive index of a prism is mu . Find the maximum angle of the prism for which a ray incident on it will be transmitted through other face without total internal reflection.

A ray of light travels in medium of refractive index mu . It incidents at a surface in contact with air at 45^@ . For what value of mu , this ray will undergo total internal reflection ?