JEE Main 2016PhysicsRay OpticsMediumMCQ

JEE Main 2016 — Ray Optics Question with Solution

JEE Main 2016 (10 Apr Online)

Question

A hemispherical glass body of radius 10 cm and refractive index 1.5 is silvered on its curved surface. A small air bubble is 6 cm below the flat surface inside it along the axis. The position of the image of the air bubble made by the mirror is seen :

Choose an option

Show full solutionCorrect option: B
Correct answer
B20cm below flat surface

Step-by-step explanation

Mirror image

1v+1u=1f⇒1v+1-4=1-5

1v=120
v=20

So, it is 30 cm below flat surface.

Now, After refraction

v'=30μ=301.5=20 cm

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About this question

This is a previous-year question from JEE Main 2016, covering the Ray 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.