MHT CET 2026 20th April Evening Shift | Ray Optics Question 1 | Physics

A thin glass prism has refractive index $1.5$. The correct relation between the angle of minimum deviation $(\delta m)$ and angle of refraction $(r)$ is

$\delta m = \dfrac{r}{2}$

$\delta m = 2r$

$\delta m = r$

$\delta m = \dfrac{3r}{2}$

MHT CET 2026 20th April Morning Shift

MCQ (Single Correct Answer)

-0

The prism has refracting angle A. The second refracting surface of the prism is silvered. Light ray falling on first refracting surface with angle of incidence $2A$, reaches the second surface and returns back through same path due to reflection at the silvered surface. The refractive index of the material of prism is

$2 \sin A$

$2 \cos A$

$\dfrac{1}{2} \sin A$

$\dfrac{1}{2} \cos A$

MHT CET 2025 5th May Evening Shift

MCQ (Single Correct Answer)

-0

Three immiscible transparent liquids with refractive indices $3 / 2,4 / 3$ and $6 / 5$ are arranged one above the other in a container. The depths of the liquids are $3 \mathrm{~cm}, 4 \mathrm{~cm}$ and 6 cm respectively. The apparent depth of the vessel is

4 cm

6 cm

8 cm

10 cm

MHT CET 2025 26th April Evening Shift

MCQ (Single Correct Answer)

-0

Refractive index of a glass convex lens is 1.5 . The radius of curvature of each of the two surfaces of the lens is 40 cm . The ratio of the power of the lens when immersed in a liquid of refractive index 1.25 to that when placed in air is

$2: 3$

$3: 2$

$2: 5$

$5: 2$

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