If a ray of lights strikes a mirror perpendicularly what will be the value of reflected angle?

In a plane mirror if a ray of light reflects at 35^@ angle then what will be the value of incident angle?

A ray of light is incident on a transparent block of refractive index 1.62. If the reflected ray and refracted ray are perpendicular to each other, what is the value of the angle of incidence?

A ray of light is incident on a concave mirror along its principal axis.What will be the angle of reflection?

When a ray of light is incident on a plane normally, then what is the value of angle of refractive?

What is incident ray and reflected ray?

A light ray is incident on one refraction face of a prism, of refractive angle A, at an angle of incidence, I and emerges from the opposite face, normally. If refractive index of the material of the prism be mu what will be the value of the angle of incidence?

A ray of light incident on a medium at polarising angle.what will be the angle between the reflected and the refracted rays? Or, an unpolarised ray of light is incident on a rectangular glass block at Brewster's angle. What will be the angle between the reflected and the refracted rays?

When a ray of light is incident perpendicularly on a transparent glass slab, what will be its angle of deviation?

If incident ray and reflected ray falls perpendicular on each other then reflected angle becomes_____

A beam of parallel light rays are incident on a surface of a glass plate at angle 60^(@) . If the reflected rays from the glass surface get totally poarised-(i) What would be the magnitude of refracted angle? (ii) What is the refractive index of glass?