Question

Define Principal Focus, Focal Length And Pole Of Spherical Mirror's .

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Answer 1

Explanation:

The reflecting surface of the mirror. 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. ... Focal Length: The distance between the pole and the principal focus of a spherical mirror is called focal length.

Answer 2

Answer:

The reflecting surface of the mirror.

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. Represented by F.

Focal Length: The distance between the pole and the principal focus of a spherical mirror is called focal length. Represented by

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