Question

define pole , centre of curvature, focus and principlal axis

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Answer 1

Answer:

Pole: The centre of reflecting surface. It is represented by letter P. Centre of Curvature: The centre of the sphere of which the mirror forms the part. ... Focus: The point of the principal axis at which the rays parallel to principal axis meet (concave mirror) or appear to meet (convex mirror) after reflection

Explanation:

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Answer 2

Answer:

Moderate_verified_answer

Pole: The centre of reflecting surface. It is represented by letter P. Centre of Curvature: The centre of the sphere of which the mirror forms the part. ... Focus: The point of the principal axis at which the rays parallel to principal axis meet (concave mirror) or appear to meet (convex mirror) after reflection.