Ray Optics · Physics · IAT (IISER)
MCQ (Single Correct Answer)
1
The refractive indices $(n)$ of two transparent slabs are 2 and $2 / \sqrt{3}$. They are attached together and placed in a third transparent medium of refractive index $\sqrt{2}$, as shown in the figure. The thickness of the upper slab is $I \mathrm{~cm}$. A monochromatic light ray is incident on the upper slab at $45^{\circ}$. What would be the thickness in cm of the lower slab such that the lateral shift of the ray after passing through both the slabs is zero?


IAT (IISER) 2024
2
An object is placed in front of a convex lens. A real inverted image of double its size is formed. When the object is moved closer to the lens by a distance $d$, the image shifts away from the lens by a distance $8 d$ from its previous position. What is the magnitude of the magnification in the final setup?
IAT (IISER) 2023
3
What is the maximum angle of incidence $\theta_i$ in the figure for which the ray would satisfy the condition for total internal reflection at the boundary of media of refractive indices $n_1$ and $n_2$, where $n_1>n_2$ ?
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IAT (IISER) 2020