20% 7:27 a.m. 6. Read the following and answer the questions :- each carry 1 marks A highly polished surface, such as a mirror, reflects most of the light falling on it. You are already familiar with the law of reflection of light. (i) The angle of incidence is equal to the angle of reflection, and (ii) The incident ray the normal to the mirror at the point of incidence and reflected ray all lie in same plane. These law of reflection are applicable to all types of reflecting surfaces including spherical surfaces. You are familiar with the formation of image by a plane mirror. What are the properties of the image? Image formed by a plane mirror is always virtual and erect. The size of the image is equal to that of the object The image formed is as far behind the mirror as the object is in front of it. Further, the image is laterally inverted. (i) A mirror is (a) a highly polished surface which reflects light. (c) a surface which refracts light (ii) The image formed by a plane mirror is (a) real and inverted (c) virtual and erect (iii) The image formed by a plane mirror is (a) bigger than the object (c) same size as that of the object (iv) In a plane mirror, the image is formed: (a) in front of the mirrors (c) in the mirror Questions carries 2 marks each : (b) any surface which reflects light. (d) none of these (b) virtual and inverted (d) real and erect (b) smaller than the object (d) depends upon the size of the mirror. (b) behind the mirror (d) none of these
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