DSSSB TGT Light - Reflection and Refraction — practice questions
29 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice DSSSB TGT Light - Reflection and Refraction in the app →According to the law of reflection, the angle of incidence is equal to the:A concave mirror is also known as a:A convex mirror is also known as a:The image formed by a plane mirror is:The bending of light as it passes from one transparent medium into another is called:A convex lens is a:A concave lens is a:The distance between the pole and the principal focus of a spherical mirror is called the:For a spherical mirror, the focal length f and radius of curvature R are related by:The type of mirror used as a rear-view (wing) mirror in vehicles is a:A concave mirror is used by dentists and for shaving because it can form a:The refractive index of a medium compares the speed of light in:Light is assumed, in this chapter, to travel in:Which property is true of an image formed by a plane mirror?The principal focus of a spherical mirror, for small apertures, lies:A spherical mirror has a radius of curvature of 24 cm. Its focal length is:A concave mirror forms a tiny, real, inverted image at its focus when the object is placed:An image formed by a convex mirror is always:Why are convex mirrors preferred as rear-view (wing) mirrors in vehicles?In the New Cartesian Sign Convention for spherical mirrors, distances measured along the principal axis are POThe mirror formula relating object distance u, image distance v, and focal length f is:A concave mirror forms a virtual, erect image. The magnification m must be:Light bends when it passes from one transparent medium to another. This phenomenon is called:The refractive index of a medium is 1.5. The speed of light in this medium is:A ray of light passes from air into water (refractive index 1.33). The ray will bend:Which of the following can make a parallel beam of light when light from a point source is incident on it?Under which of the following conditions a concave mirror can form an image larger than the actual object?A full length image of a distant tall building can definitely be seen by usingIn torches, search lights and headlights of vehicles the bulb is placed