What is incident ray and reflected ray?

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

Find the deviation produced by reflection at a plane mirror when the angle between the incident and reflected' rays is 80?

A ray of light enters a rectangular glass block and is incident on the lower face of the block. Angle of incidence is 30^(@) . Part of the ray is reflected inside it and the rest emerges out of the block. Refractive index of glass is 1.5. What is the angle between the emergent ray and the reflected ray? [sin 48^(@) = 0.75]

A ray of light is reflected by a plane mirror. hatepsilon_(0), hate and hatn be the unit vectors along the incident ray, reflected ray and the normal to the reflecting surface respectively. Which of the following gives an expression for hate ?

A ray of light is incident on a reflecting surface making an angle 50^(@) with the surface. Due to reflection, the angle of deviation is

If a ray of light is incident on a reflecting medium at the polarising angle, prove that the reflected and the refracted rays are at 90^(@) to each other.

A ray of light passing through the medium of refractive index mu_(1) is incident on the surface of separation of another medium of refractive index mu_(2) . A part of the ray is reflected and another part is refracted. What should be the angle of incident so that reflected ray and the refracted ray are at right angles to each other?

Indicate incident ray, refracted ray and normal at the point of incidence using a ray diagram.