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JEE MAIN 2024
04-04-24 S1
Question
In an experiment to measure focal length (f) of convex lens, the least counts of the measuring scales for the position of object $(u)$ and for the position of image $(v)$ are $\Delta u$ and $\Delta v$, respectively. The error in the measurement of the focal length of the convex lens will be :
Select the correct option:
A
(1) $\frac{\Delta u}{u}+\frac{\Delta v}{v}$
B
$\mathrm{f}^2\left[\frac{\Delta \mathrm{u}}{\mathrm{u}^2}+\frac{\Delta \mathrm{v}}{\mathrm{v}^2}\right]$
C
$2 \mathrm{f}\left[\frac{\Delta \mathrm{u}}{\mathrm{u}}+\frac{\Delta \mathrm{v}}{\mathrm{v}}\right]$
D
$f\left[\frac{\Delta u}{u}+\frac{\Delta v}{v}\right]$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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