Home Physics Ray Optics Mix The focal lengths of the objective & the eye…
Physics Ray Optics Mix MCQ (Single Correct)

The focal lengths of the objective & the eyepiece of a compound microscope are 1 cm & 5 cm respectively. An object placed at a distance of 1.1 cm from the objective has its final image formed at 25 cm from the eye piece. The length of the microscope tube is:

A
6.1 cm
B
49/8 cm
C
6 cm
D
91/6 cm

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Text Solution

Verified by Experts
The correct answer is:
D

For objective

, v 0 = 11 cm

For eyepiece.

– u e =

∴ L = 11 + cm

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