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MHT CET 2024 (4 May, Shift 1) · Optical Instruments & the Eye

Optical Instruments & the Eye question from MHT CET 2024 (4 May, Shift 1)

Q12MHT CET 2024 · 4 MAY · SHIFT 1Easy

Optical Instruments & the Eye

Focal length of objective of an astronomical telescope is 1.5 m. Under normal adjustment, length of telescope is 1.56 m. Focal length of the eyepiece is

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Answer: (a)

Normal adjustment: $L = f_o + f_e$ .
$f_e = 1.56 - 1.5 = 0.06\,\text{m}$
So the answer is (a) 0.06 m.

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