JEE Main 2019 — Wave Optics Question with Solution
From: JEE Main 2019 (Online) 12th April Morning Slot
Question
The value of numerical aperature of the objective lens of a microscope is 1.25. If light of wavelength 5000
is used, the minimum separation between two points, to be seen as distinct, will be :
Choose an option
Show full solutionCorrect option: C
Correct answer
C0.24 m
Step-by-step explanation
Numerical aperature of the microscope is given as
Where d = minimum sparaton between two points to be seen as distinct
= 2.4
Where d = minimum sparaton between two points to be seen as distinct
= 2.4
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This is a previous-year question from JEE Main 2019, covering the Wave Optics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.