NEET UG PHYSICS MCQ: RAY OPTICS

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Analyzing +4 | -1

An eye can distinguish between two points of an object if they are separated by more than

0.22 \mathrm{~mm}

when the object is placed at

25 \mathrm{~cm}

from the eye. The object is now seen by a compound microscope having a

20\,\mathrm{D}

objective and

10\,\mathrm{D}

eyepiece separated by a distance of

20 \mathrm{~cm}

. The final image is formed at

25 \mathrm{~cm}

from the eye. What is the minimum separation between two points of the object which can now be distinguished?

View answer and explanation

Correct option: C

0.04 mm

Option C (0.04 mm) is correct. The minimum separation is found by dividing the eye's resolution limit by the magnifying power of the microscope.

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