Question

define the following term with reference to a spherical mirror a. radius of curvature b. principal axis of convex mirror b.focal length​

Answer 1

Answer:

Explanation: focal length (the distance between the pole and the focus)

Radius of curvature (the radius of that sphere of the mirror is a part )

Principal axis (the line joining the pole and center of curvature)

Answer 2

1. .. the radius of a circle which touches a curve at a given point and has the same tangent and curvature at that point.

2..... Imaginary line draws horizontally through the Centre of mirror

3......focal length is the distance from Centre to the focus pt....

The relationship between radius of curvature and focal length is

F=2R......