Mirror Formula

Author:Pradeep Paul, R Parthasarthy & Basha
10th CBSE
IMPORTANT

Mirror Formula: Overview

This topic explains the mirror formula (the relationship between the distance of an object, image and focal length) for concave and convex spherical mirrors for all positions of objects. It also explains linear magnification produced by spherical mirrors.

Important Questions on Mirror Formula

MEDIUM
IMPORTANT

Using the same (mirror formula) find the distance at which an object to be placed for getting a real, inverted and enlarged image at 45 cm using a concave mirror of focal length 20 cm.

MEDIUM
IMPORTANT

What are Cartesian sign conventions used in spherical mirrors? What is the mirror formula?

EASY
IMPORTANT

Can the magnification of a convex mirror be negative?

EASY
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If the focal length of a convex mirror is 12 cm, then what is its radius of curvature?

EASY
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If the radius of curvature of a convex mirror is 30 cm, then what is its focal length?

MEDIUM
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Is the mirror formula same for convex and concave mirrors?

EASY
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When a ray of light enters from air to water, which way will it bend?

MEDIUM
IMPORTANT

Why the linear magnification of a convex lens is either positive or negative?

EASY
IMPORTANT

Can you measure approximate focal length of concave lens?