Two identical symmetric double convex lenses of focal length f ar… | JEE Main 2025 Physics PYQ

MCQMediumJEE Main 2025 · 29 January, Shift 2Refraction & Lenses

Two identical symmetric double convex lenses of focal length $f$ are cut into two equal parts $L_1, L_2$ by the $AB$ plane and $L_3, L_4$ by the $XY$ plane as shown in the figure respectively. The ratio of focal lengths of lenses $L_1$ and $L_3$ is:

Two symmetric double convex lenses shown cut into equal parts, one by horizontal plane AB forming L1 and L2, and the other by vertical plane XY forming L3 and L4.

A
$1 : 4$
B
$1 : 1$
C
$2 : 1$
D
$1 : 2$

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