Skip to main content

The eye can be regarded as a single refracting surface. The radius of curvature of this surface is equal to that of the cornea (7.8 mm). This surface…

JEE Main 2019 — Physics Optics

2019mcqmedium

The eye can be regarded as a single refracting surface. The radius of curvature of this surface is equal to that of the cornea (7.8mm)(7.8 \mathrm{mm})(7.8mm). This surface separates two media of refractive indices 111 and 1.341.341.34. Calculate the distance from the refracting surface at which a parallel beam of light will come to focus.

Official previous-year question

Held on 10 Jan 2019 · Verified 6 Jul 2026.

Options

  1. A

    4.0cm4.0\mathrm{cm}4.0cm

  2. B

    1cm1\mathrm{cm}1cm

  3. C

    2cm2\mathrm{cm}2cm

  4. D

    3.07cm3.07 cm3.07cm

Did you get this right?

Sign in to track your attempts and accuracy.

Your note

Sign in to keep a private note on this question. Nothing you write is ever public.

JEE Main Optics in other years

More JEE Main Optics questions

Other Physics topics for JEE Main

Keep practicing Optics

Work through every JEE Main Optics PYQ, year by year.

Browse all Physics topics