State whether true or false :
The principal focus of a spherical mirror lie midway between the pole and centre of curvature.

True

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False

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Solution

The correct option is A True
True
There is a relationship between the radius of curvature $R$ , and focal length $f$ , of a spherical mirror and is given by $R = 2 f$ which means that that the principal focus of a spherical mirror lies midway between the pole and center of curvature.

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Similar questions

The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object?

(a) Between the principal focus and the centre of curvature

(b) At the centre of curvature

(d) Between the pole of the mirror and its principal focus.

Define the terms pole, principal axis and centre of curvature with reference to a spherical mirror.

A spherical concave mirror focuses all rays parallel to its principal axis exactly onto the focus. True or False?

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