Question:
When a convex mirror of focal length $f$ produces an image $\left(\frac{1}{n}\right)th$ of the size of the object ,then distance of the object from the mirror is
When a convex mirror of focal length $f$ produces an image $\left(\frac{1}{n}\right)th$ of the size of the object ,then distance of the object from the mirror is
Updated On: Jul 7, 2022
- $nf$
- $\frac{f}{n}$
- $(n+1)f$
- $(n-1)f$
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The Correct Option is D
Solution and Explanation
Answer (d) $(n-1)f$
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Notes on Spherical Mirrors
Concepts Used:
Spherical Mirrors
A spherical mirror is a mirror which has been cut out of a spherical surface.
There are two kinds of spherical mirrors:
- Convex Mirror
- Concave Mirror
Concave Mirror
Concave mirrors are also called converging mirrors, because in these types of mirrors, light rays converge at a point after impact and reflect back from the reflective surface of the mirror.
Convex Mirror
The convex mirror has a reflective surface that is curved outward. Regardless of the distance between the subject and the mirrors, these mirrors are "always" virtual, upright and reduced.