JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
A thin prism with angle made of glass having refractive index 1.54 , is combined with another thin prism made of glass having refractive index 1.72 to get dispersion without deviation. The angle of the prism in degrees is
- A1.5
- B16/3
- C3
- D4
More from Geometrical Optics
- A hemispherical vessel is completely filled with a liquid of refractive index . A small coin is kept at the lowest point of the vessel as shown in figure. The minimum value of the refractive index of the liquid so that… Includes diagram2025 · MCQ
- A concave mirror produces an image of an object such that the distance between the object and image is 20 cm. If the magnification of the image is –3, then the magnitude of the radius of curvature of the mirror is :2025 · MCQ
- In a long glass tube, mixture of two liquids A and B with refractive indices 1.3 and 1.4 respectively, forms a convex refractive meniscus towards A . If an object placed at 13 cm from the vertex of the meniscus in A forms an image with a…2025 · MCQ
- Let u and v be the distances of the object and the image from a lens of focal length f. The correct graphical representation of u and v for a convex lens when |u| > f, is2025 · MCQ
- Two light beams fall on a transparent material block at point 1 and 2 with angle and , respectively, as shown in figure. After refraction, the beams intersect at point 3 which is exactly on the interface at other end… Includes diagram2025 · Numerical
- A convex lens made of glass (refractive index = 1.5) has focal length 24 cm in air. When it is totally immersed in water (refractive index = 1.33), its focal length changes to2025 · MCQ
- Two concave refracting surfaces of equal radii of curvature and refractive index 1.5 face each other in air as shown in figure. A point object O is placed midway, between P and B. The separation between the images of O, formed by each… Includes diagram2025 · MCQ
- Two identical symmetric double convex lenses of focal length f are cut into two equal parts L1, L2 by AB plane and L3, L4 by XY plane as shown in figure respectively. The ratio of focal lengths of lenses L1 and L3 is Includes diagram2025 · MCQ