For the situations shown in figure, determine the angle by which the mirror should be rotated, so that the light ray will retrace its path after refraction through the prism and reflection from the mirror?

In the shown figure, mirror is rotated by an angle theta. Find theta if ray of light retraces its path after reflection from M ray of light MP turns in the direction of MN.

In the shown figure, mirror is rotated by an angle theta. Find theta if ray of light retraces its path after reflection from M ray of light MP turns in the direction of MN.

A ray of light passing through centre of curvature of a spherical mirror retraces its path on reflection from the mirror.

A small angled prism of apex angle A=4^@ and refractive index mu=1.5 is placed in front of a vertical plane mirror as shown in figure. If the mirror is rotated through an angle theta, then the light ray becomes horizontal either after the mirror or after second time passing from the prism in opposite direction. The value theta is

A small angled prism of apex angle A=4^@ and refractive index mu=1.5 is placed in front of a vertical plane mirror as shown in figure. If the mirror is rotated through an angle theta, then the light ray becomes horizontal either after the mirror or after second time passing from the prism in opposite direction. The value theta is

A ray of light falling normally on a plane mirror retraces its path on reflection.

The refractive index of the amterial of a prism is sqrt2 and its refracting angle is 30^@ .One of the refracting surface of the prism is made a mirror inwards.A beam of monochromatic light entering the prism from the other face will retrace its path after reflecting from the mirrored surface,if its angle of incidence on the prison is

The refractive index of the material of a prism is sqrt(2) and the angle of the prism is 30^(@) . One of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is

The refractive index of the material of a prism is sqrt2 and the angle of the prism is 30^@ . One of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is