1
MHT CET 2023 9th May Morning Shift
+1
-0

The angle of prism is $$A$$ and one of its refracting surface is silvered. Light rays falling at an angle of incidence '$$2 \mathrm{A}$$' on the first surface return back through the same path after suffering reflection at the silvered surface. The refractive index of the material of the prism is

A
$$2 \sin \left(\frac{\mathrm{A}}{2}\right)$$
B
$$2 \tan \mathrm{A}$$
C
$$2 \cos \mathrm{A}$$
D
$$2 \sin \mathrm{A}$$
2
MHT CET 2022 11th August Evening Shift
+1
-0

The speed of light in two media $$M_1$$ and $$M_2$$ are $$1.5 \times 10^8$$ $$\mathrm{m} / \mathrm{s}$$ and $$2 \times 10^8 \mathrm{~m} / \mathrm{s}$$ respectively. If the light undergoes total internal reflection, the critical angle between the two media is

A
$$\sin ^{-1}\left(\frac{3}{2}\right)$$
B
$$\sin ^{-1}\left(\frac{2}{3}\right)$$
C
$$\sin ^{-1}\left(\frac{4}{3}\right)$$
D
$$\sin ^{-1}\left(\frac{3}{4}\right)$$
3
MHT CET 2022 11th August Evening Shift
+1
-0

The minimum distance between an object and its real image formed by a convex lens of focal length 'f' is

A
2f
B
4f
C
1.5f
D
2.5f
4
MHT CET 2021 24th September Evening Shift
+1
-0

A ray of light is incident on one face of an equilateral glass prism having refractive index $$\sqrt{2}$$. It produces the emergent ray which just. grazes along the adjacent face. The value of angle of incidence is $$\left(\sin 45^{\circ}=\cos 45^{\circ}=\frac{1}{\sqrt{2}}\right)$$

A
$$\sin ^{-1}\left(\frac{1}{\sqrt{2}} \sin 15^{\circ}\right)$$
B
$$\sin ^{-1}\left(\sqrt{2} \sin 30^{\circ}\right)$$
C
$$\sin ^{-1}\left(\frac{1}{\sqrt{2}} \sin 45^{\circ}\right)$$
D
$$\sin ^{-1}\left(\sqrt{2} \sin 15^{\circ}\right)$$
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