Physics · 2025
JEE Main · 7 April 2025, Shift 1 · Q27
Two thin convex lenses of focal lengths 30 cm and 10 cm are placed coaxially, 10 cm apart. The power of this combination is:
Two thin convex lenses of focal lengths $\displaystyle 30$ cm and $\displaystyle 10$ cm are placed coaxially, $\displaystyle 10$ cm apart. The power of this combination is:
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 10$ D
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.