MHT CET 2022 11th August Evening Shift | Ray Optics Question 23 | Physics

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

$$\sin ^{-1}\left(\frac{3}{2}\right)$$

$$\sin ^{-1}\left(\frac{2}{3}\right)$$

$$\sin ^{-1}\left(\frac{4}{3}\right)$$

$$\sin ^{-1}\left(\frac{3}{4}\right)$$

MHT CET 2022 11th August Evening Shift

MCQ (Single Correct Answer)

-0

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

1.5f

2.5f

MHT CET 2021 22th September Evening Shift

MCQ (Single Correct Answer)

-0

An object is located on a wall, its image of equal size is to be obtained on a parallel wall with the help of a convex lens. The lens is placed at a distance '$$\mathrm{d}$$' in front of the second wall. The required focal length of the lens is

less than $$\frac{d}{4}$$

only $$\frac{\mathrm{d}}{4}$$

(more than $$\frac{d}{4}$$ but less than $$\frac{d}{2}$$

only $$\frac{d}{2}$$

MHT CET 2021 22th September Evening Shift

MCQ (Single Correct Answer)

-0

The critical angle for light going from medium '$$x$$' to medium '$$Y$$' is $$\theta$$. The speed of light in medium '$$x$$' is '$$V$$' . The speed of light in medium '$$Y$$' is

$$\mathrm{V}_{\mathrm{x}} \sin \theta$$

$$\mathrm{V}_{\mathrm{x}} \tan \theta$$

$$\frac{\mathrm{V}_{\mathrm{x}}}{\tan \theta}$$

$$\frac{\mathrm{V}_{\mathrm{x}}}{\sin \theta}$$

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