Question

Please help me answer these definitions ​

Answer 1

Answer:

the three definitions which you need is attached in the picture

Explanation:

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Answer 2

Answer:

1. POLE -The centre of a spherical mirror is called it's pole.

2.PRINCIPAL axis- The straight line passing through the center of curvature and pole of the spherical mirror is called principal axis

3.CENTRE of CURVATURE - Center of the hollow sphere of glass of which mirror is a part of....