Question:
When an object is placed in front of a convex mirror at a distance 'u' from the pole of the mirror such that the size of the image is 'n' times that of the object, then the object distance 'u' is
When an object is placed in front of a convex mirror at a distance 'u' from the pole of the mirror such that the size of the image is 'n' times that of the object, then the object distance 'u' is
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Remember that convex mirrors always produce diminished, virtual images with a negative focal length.
Updated On: Jun 6, 2025
- $\frac{f}{n^2}$
- $nf - f$
- $\frac{f}{n}$
- $\frac{f}{n^2}$
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The Correct Option is A
Solution and Explanation
For a convex mirror, the relationship between the object distance $u$, the image size ratio $n$, and the focal length $f$ is given by the formula:
$$ u = \frac{f}{n^2} $$
This formula is derived from the mirror equation and magnification relation.
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