sarkari result, inewjob 2020 is the best place to get fast updates of the most recent Sarkari 2020. Similarly, the ray starting from A and traveling towards point C follows the law of reflection. Concave mirrors are used in various medical practices. answered Nov 22, 2017 by akansha Expert (2.2k points) (i) Uses of plane mirrors. A horizontal parallel beam of light passes through a vertical convex lens of focal length 20 cm and is then reflected by a tilted plane mirror so that it converges to a point I. what are the uses of concave and convex mirrors? To distinguish between a plane mirror, a concave mirror and a convex mirror without touching it, bring each mirror near to your face one by one and note the change in size of the image formed. (iii) Uses of convex mirrors • Convex mirrors are commonly used as rear view mirrors in vehicles because they always give an errect image and have wider field of view as they are curved outwards. Why? In order to make a magnifying glass, two convex mirrors are placed back to back. The convex mirror is curved as the outside of a bowl, reflects a wider viewing area and the images reflected appear smaller. They are often used as shaving mirrors to see a larger image of the face. Central Sarkari Exam 2020 State Vacancies including Railway Jobs, UPSC, SSC, PSC, banking, and so forth. Explain how to differentiate between a plane mirror, concave and a convex mirror. A convex mirror is used as a rear-view mirror because the image provided by a convex mirror is Erect - Hence, the image produced to the driver is not inverted, it’s right side is up. It is an allegory having a particapation of more than half of dozen burds and animals like herons, duck, lions... CBSE Class 10 Maths Notes Chapter 5 Arithmetic Progressions is part of Class 10 Maths Notes for Quick Revision. The reflected rays appear to come from a point on the principal axis when rays parallel to the principal axis fall on a convex mirror, that point is called the principal focus of the convex mirror. It is represented by the letter f. The diameter of the reflecting surface of a spherical mirror is called its aperture. This kind of mirror is known as a concave mirror. Concave mirrors are commonly used in torches, search-lights, and vehicle headlights to get powerful parallel beams of light. Geometrical Optics In the study of how light behaves, it is useful to use “light rays” and the fact that light travels in straight lines. It means if you raise your left hand it would appear in the plane mirror that you have raised your right hand. The Frog And The Nightingale | English Class 10, Arithmetic Progression | Math Notes Class 10, PERSONALITY, ITS DEFINITION AND TYPES-TRAIT AND TYPE, Life Process | Science Class -10 - OnlineEduCafe, It is erect and of the same size as the object. Also, the concave mirrors are used as shaving mirrors to see a larger view or image of the face. Draw the ray diagram and find the position, nature and size of image formed by a convex mirror, if the object is placed (i) at infinity, (ii) between infinity and the pole. Here we have given NCERT Class... Life Process However, it lies behind the mirror in the case of a convex mirror. According to the great Chanakya. Concave Mirror. Uses of the convex mirror in a magnifying glass. The principal focus is represented by the letter F. The distance between the pole and the principal focus of a spherical mirror is called the focal length. 2020 is the best place to get fast updates of the most recent Sarkari 2020. The point is called the principal focus of the concave mirror. Save my name, email, and website in this browser for the next time I comment. Diminished - Hence, the image produced is much smaller than the actual size of the object. The plane mirrors and colour glass used in kaleidoscopes reflect many colourful patterns. State two applications each of (i) convex lens, and (ii) concave lens. For the ray starting from point A and traveling in a horizontal direction towards point E, the angle of incidence is 0 and hence it retraces its path. Can you elaborate its use? When these rays are produced backward they appear to meet at a point E and D. Now this image is known as a virtual image. The concave mirror is used in front lights of cars to reflect the light, It is used in marine lighthouses that are found at the marine ports and at the airports to guide the ships and it is used in the solar ovens. The center of the reflecting surface of a spherical mirror which lies on the surface of the mirror is usually represented by the letter P. The reflecting surface of a spherical mirror forms a part of a sphere. We are used to plane mirrors. 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