STATEMENT-`1` Law of reflection is applicable for all type of mirrors.
`STATEMENT 2`Rays which are parallel to principal axis are known as paraxial rays.

Rays parallel to principal axis, incident on the spherical mirror at different heights from principal axis are focused at different points. And due to this reason we cannot define unique focus. This is known as spherical aberration. Angle of incidence theta shown in figure depends on the height of ray above principal axis. Focal length of spherical mirror can be easily written in terms of angle theta shown in figure as follows : f = R- (R)/(2)sec theta Here R is radius of curvature of mirror. The light rays which are very close to principal axis are known as paraxial rays and rays far away from principal axis are called marginal rays. Let f_(P) and fm represent the focal length corresponding to paraxial rays and marginal rays respectively then

Rays parallel to principal axis, incident on the spherical mirror at different heights from principal axis are focused at different points. And due to this reason we cannot define unique focus. This is known as spherical aberration. Angle of incidence theta shown in figure depends on the height of ray above principal axis. Focal length of spherical mirror can be easily written in terms of angle theta shown in figure as follows : f = R- (R)/(2)sec theta Here R is radius of curvature of mirror. The light rays which are very close to principal axis are known as paraxial rays and rays far away from principal axis are called marginal rays. For paraxial rays focal length is approximately

Rays parallel to principal axis, incident on the spherical mirror at different heights from principal axis are focused at different points. And due to this reason we cannot define unique focus. This is known as spherical aberration. Angle of incidence theta shown in figure depends on the height of ray above principal axis. Focal length of spherical mirror can be easily written in terms of angle theta shown in figure as follows : f = R- (R)/(2)sec theta Here R is radius of curvature of mirror. The light rays which are very close to principal axis are known as paraxial rays and rays far away from principal axis are called marginal rays. What will be the focal length for ray which is incident at an angle 60^(@) ?

The rays coming from object parallel to principal axis of a concave mirror will converge at……..

Where will the rays coming parallel to the principal axis coverage ?

What happens to a ray travelling parallel to the principal axis ?

STATEMENT-1: Real images cannot be formed by reflection of light in a convex mirror. STATEMENT-2: Parallel rays incident on a convex mirror must diverge after reflection.

A ray of light after reflection from a mirror is known as

What happens if light rays parallel to principal exis fall on the concave mirror and draw ray diagram.