JEE Main 2019PhysicsWave OpticsDiffraction And Doppler Effect Of LighteasyMCQ

JEE Main 2019Wave Optics Question with Solution

From: JEE Main 2019 (Online) 9th April Evening Slot

Question

Diameter of the objective lens of a telescope is 250 cm. For light of wavelength 600nm. coming from a distant object, the limit of resolution of the telescope is close to :-

Choose an option

Show full solutionCorrect option: A
Correct answer
A3.0 × 10–7 rad

Step-by-step explanation

Limit of resolution =

=

= 2.9 × 10–7 rad.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Wave Optics chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

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.