1

JEE Advanced 2021 Paper 1 Online

MCQ (More than One Correct Answer)

+4

-2

A wide slab consisting of two media of refractive indices n

_{1}and n_{2}is placed in air as shown in the figure. A ray of light is incident from medium n_{1}to n_{2}at an angle $$\theta$$, where sin$$\theta$$ is slightly larger than 1/n_{1}. Take refractive index of air as 1. Which of the following statement(s) is(are) correct?2

JEE Advanced 2020 Paper 2 Offline

MCQ (More than One Correct Answer)

+4

-2

A beaker of radius r is filled with water (refractive index $${4 \over 3}$$) up to a height H as shown in the figure on the left. The beaker is kept on a horizontal table rotating with angular speed $$\omega$$. This makes the water surface curved so that the difference in the height of water level at the center and at the circumference of the beaker is h (h << H, h << r), as shown in the figure on the right. Take this surface to be approximately spherical with a radius of curvature R. Which of the following is/are correct? (g is the acceleration due to gravity)

3

JEE Advanced 2019 Paper 2 Offline

MCQ (More than One Correct Answer)

+4

-1

Three glass cylinders of equal height H = 30 cm and same refractive index n = 1.5 are placed on a horizontal surface as shown in figure.

Cylinder I has a flat top, cylinder II has a convex top and cylinder III has a concave top. The radii of curvature of the two curved tops are same (R = 3 m). If H

Cylinder I has a flat top, cylinder II has a convex top and cylinder III has a concave top. The radii of curvature of the two curved tops are same (R = 3 m). If H

_{1}, H2_{}, and H3_{}are the apparent depths of a point X on the bottom of the three cylinders, respectively, the correct statement(s) is/are4

JEE Advanced 2019 Paper 1 Offline

MCQ (More than One Correct Answer)

+4

-1

A thin convex lens is made of two materials with refractive indices n

Assuming $$\Delta $$n << (n - 1) and 1 < n < 2, the correct statement(s) is/are

_{1}and n_{2}, as shown in the figure. The radius of curvature of the left and right spherical surfaces are equal. f is the focal length of the lens when n_{1}= n_{2}= n. The focal length is f + $$\Delta $$f when n_{1}= n and n_{2}= n + $$\Delta $$n.Assuming $$\Delta $$n << (n - 1) and 1 < n < 2, the correct statement(s) is/are

Questions Asked from Geometrical Optics (MCQ (Multiple Correct Answer))

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