Chapter 18 – Refraction at Spherical Surfaces

A point source of light is placed at a distance of 2f from a converging lens of focal length f. The intensity on the other side of the lens is maximum at a distance A point source of light is placed at a distance of 2f from a converging lens of focal length f. The [...]

When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts as a plane sheet of glass. This implies that it acts as a plane sheet of glass. This implies that When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid December 6, 2020 [...]

A plano convex lens of refractive index 1.5 and radius of curvature 30cm. Is silvered at the curved surface. Now this lens has been used to form the image of an object. At what distance from this lens an object be placed in order to have a real image of size of the object. A [...]

A pin is placed 10cm in front of a convex lens of focal length 20cm, made of a material having refractive index 1.5. The surface of lens farther away from the pin is silvered and has a radius of curvature 22cm. The distance of the image from the lens and its nature are A pin [...]

A plano-convex lens of focal length 30 cm has its plane surface silvered. An object is placed 40 cm from the lens on the convex side. The distance of the image from the lens is A plano-convex lens of focal length 30 cm has its plane surface silvered. An object is placed 40 cm from [...]

A plano-convex lens when silvered on the plane side behaves like a concave mirror of focal length 60 cm. However when silvered on the convex side it behaves like a concave mirror of focal length 20 cm. Then the refractive index of the lens is A convex lens of glass has power P in air. [...]

A convex lens is placed in contact with a mirror as shown. If the space between them is filed with water, its power will A convex lens is placed in contact with a mirror as shown. If the space between them is filed with water its power will November 17, 2020 Category: Cengage NEET by [...]

A convex lens of focal length 15 cm is placed on a plane mirror. An object is placed at 20 cm from the lens. The image is formed A convex lens of focal length 15 cm is placed on a plane mirror. An object is placed at 20 cm from the lens. The image is [...]

An equi-convex lens, having radius of curvature 33 cm is placed on a horizontal plane mirror and a pin held 20 cm above the lens coincides with its image. Now the space between the and the mirror is filled with a liquid in order to coincide with the image the pin has to be raised [...]

A convex lenses of focal length 40 cm is held coaxially 12 cm above a concave mirror of focal length 18 cm. An object held x cm above the lens gives rise to an image coincident with it. Then x is equal to A convex lens of glass has power P in air. If it [...]