JEE PHYSICS MCQ: RAY OPTICS

1 Hard

1 of 1

Application +4 | -1

For an object placed at a distance

2.4 \mathrm{~m}

from a lens, a sharp focused image is observed on a screen placed at a distance

12 \mathrm{~cm}

form the lens. A glass plate of refractive index

1.5

and thickness 1

\mathrm{cm}

is introduced between lens and screen such that the glass plate plane faces parallel to the screen. By what distance should the object be shifted so that a sharp focused image is observed again on the screen?

View answer and explanation

Correct option: B

3.2 m

Option B (3.2 m) is correct because it accounts for the shift in image position due to the glass plate and recalculates the object distance to maintain a focused image.

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