CBSE 2026 · Region 3 · Set 1 · Q6 · 1 mark
A telescope has an objective lens of focal length $\displaystyle 144$ cm and an eyepiece of focal length $\displaystyle 6.0$ cm. The magnifying power and the length of telescope tube will be respectively :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle 24$, $\displaystyle 150$ cm
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CBSE Class 12 Physics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.