{"id":3211,"date":"2018-12-18T05:42:16","date_gmt":"2018-12-18T00:12:16","guid":{"rendered":"https:\/\/cbselibrary.com\/?p=3211"},"modified":"2020-12-18T16:19:47","modified_gmt":"2020-12-18T10:49:47","slug":"concave-and-convex-mirrors","status":"publish","type":"post","link":"https:\/\/cbselibrary.com\/concave-and-convex-mirrors\/","title":{"rendered":"What are Concave and Convex Mirrors?"},"content":{"rendered":"
We are used to plane mirrors<\/a>. But, when they are curved, they produce images that are different from those formed by plane mirrors. Common examples of curved mirrors stainless steel spoons, ladles, vessels with round bases, car mirrors, shaving and hub caps of car wheels. These curved objects have two types of reflecting surfaces one that bulges out to form a convex surface, and one that curves inwards to concave surface. The first one is called a convex mirror<\/strong> and the latter is a concave mirror<\/strong>.<\/p>\n People also ask<\/strong><\/p>\n Convex mirrors make things look smaller but you can see a lot more of the surroundings. When objects are kept very close to a concave mirror, objects look larger. This makes concave mirrors useful for the following applications: <\/p>\n Concave mirrors can also focus a parallel beam of light to a point. This property is used in solar-powered projects where they reflect the heat rays of the sun so that the rays are concentrated onto a smaller area.<\/p>\n What are Concave and Convex Mirrors? We are used to plane mirrors. But, when they are curved, they produce images that are different from those formed by plane mirrors. Common examples of curved mirrors stainless steel spoons, ladles, vessels with round bases, car mirrors, shaving and hub caps of car wheels. These curved objects have … Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[404],"tags":[1458,3989,3990,1459,3995,3991,3992,3993,3994,1460,1469],"yoast_head":"\n\n
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\nThe focal length of a curved mirror is equal to half of the radius of curvature, that is = R\/2<\/li>\n<\/ol>\n\n
Uses of Curved Mirrors<\/strong><\/h2>\n
\nIn other words, they give you a wider range of view. Some uses of convex mirrors are given below.
\n\u2022 \u00a0As car wing mirrors, to see through a wide angle behind the car.
\n\u2022 \u00a0In supermarkets and big shops to look out for shoplifters.
\n\u2022 \u00a0In buses, so that the driver can view the whole bus.<\/p>\n
\n\u2022 \u00a0As shaving mirrors or while putting on make-up.
\n\u2022 \u00a0As a dentist\u2019s mirror for examination.<\/p>\nHow do you Draw a Ray Diagram for Concave and Convex Mirrors?<\/strong><\/h2>\n
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\n(a) A parallel ray (ray P) that is incident along a path parallel to the principal axis and is reflected through (or appears to go through) the focal point.
\n(b) A chief ray (ray C) or radial ray is the ray that incidents through the centre of curvature, C of the curved mirror. Since ray C is incident at normal to the surface of the mirror, it is reflected back along its incident path through point C.
\n(c) A focal ray (ray F) is the ray that passes through (or appears to go through) the focal point and is reflected parallel to the axis.<\/li>\n
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\n<\/li>\nSteps for Drawing Ray Diagrams<\/strong><\/h3>\n
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\n(a) real or virtual,
\n(b) inverted or upright,
\n(c) magnified, diminished or of the same size.<\/li>\n
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