Question

write about spherical mirrors and
terms related to the spherical mirrors​

Answer 1

Answer:

A spherical mirror is a part of a hollow sphere of glass and it has a polished surface on one of its faces.

Terms related to spherical mirror-

a)Pole =The geometric centre of a spherical mirror is called its pole.

b)Centre of curvature=It is the centre of the sphere of which spherical mirror forms a part.

c)Radius of curvature=it is the radius of the sphere of which the spherical mirror forms a part.

d)Principal axis=The imaginary line passing through the pole and the centre of curvature is called principal axis of the mirror.

e) Aperture=The diameter of the reflecting surface of spherical mirror is called its aperture.

f)Principal focus=The point on the principal axis where a beam of light travelling parallel to principal Axis,after reflection, actually meet or appears to meet is called principal focus.

g)Focal length= The distance between the pole and the principal focus of a mirror is called its focal length.