Question
A microscope has an objective of focal length 2 cm , eyepiece of focal length 4 cm and the tube length of 40 cm . If the distance of distinct vision of eye is 25 cm , the magnification in the microscope is :
NEET
Physics
Ray Optics
2025
NEET 2025
NEET Physics Question (2025) — Solution
Options
- A. 100
- B. 125
- C. 150
- D. 250
Answer
B. 125
Step-by-step solution
array ll f _0=2 ~cm & f _e=4 ~cm \\ ~L =40 ~cm & D =25 ~cm array In the condition of normal adjustment. aligned m & = L f _0 D f _e \\ & = 40 2 25 4 \\ & =125 aligned
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