Question

(1)Which of the following points of a spherical mirror is taken as origin in case of measurement of concerning distance.

(1)Centre of curvature

(2)Pole

(3)Focal Point

(4)Any of these​

Answer 1

Answer:

pole

Explanation:

Answer 2

When measuring distances from a spherical mirror, its pole points are used as origins.

Explanation:

• Distances between objects and images are measured using the pole or optical center.
• A curved mirror/lens is measured along its principal axis.
• In the case of a spherical mirror, a piece of glass is cut out of the surface of a sphere.
• The vital hub of a circular reflect is the line passing through the center of the reflect that's  precisely opposite to the surface of the reflect.