JEE Main 2022 — Ray Optics Question with Solution

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 $12 \mathrm{cm}$ from 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?