JEE Main 2016 — Wave Optics Question with Solution
From: JEE Main 2016 (Online) 10th April Morning Slot
Question
Two stars are 10 light years away from the earth. They are seen through a telescope of objective diameter 30 cm. The wavelength of light is 600 nm. To see the stars just resolved by the telescope, the minimum distance between them should be (1 light year = 9.46 1015 m) of the order of :
Choose an option
Show full solutionCorrect option: B
Correct answer
B108 km
Step-by-step explanation
The limit of resolution of a telescope,
= =
=
=
= 2.31 108 km
= =
=
=
= 2.31 108 km
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This is a previous-year question from JEE Main 2016, 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.