{"id":239,"date":"2020-04-20T11:56:20","date_gmt":"2020-04-20T11:56:20","guid":{"rendered":"https:\/\/schoolpk.org\/mcq\/?p=239"},"modified":"2020-08-17T13:06:57","modified_gmt":"2020-08-17T13:06:57","slug":"physics-10th-class-chapter-12","status":"publish","type":"post","link":"https:\/\/murreeroad.org\/physics10\/physics-10th-class-chapter-12\/","title":{"rendered":"Physics 10th Class Chapter 12"},"content":{"rendered":"

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Unit 12 Geometrical Optics<\/h2>
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    Unit 12 \u2013\u00a0Geometrical Optics<\/p>\n <\/p>\n\n \n

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    1. \n Physics 10th Class English Medium Chapter 12<\/span>\n 0%<\/span>\n <\/li>\n <\/ol>\n <\/div>\n <\/div>\n
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              Snell’s law is stated as:<\/p>\n <\/div>\n

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                Focal length for concave mirror is :<\/p>\n <\/div>\n

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                  An object of placed at he centre of curvature of a concave mirror. The image produced by the mirror is located:<\/p>\n <\/div>\n

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                    An object is 14 cm is front of a convex mirror. The image is 5.8 cm behind the mirror. What is the focal length of the mirror?<\/p>\n <\/div>\n

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                      Which of the following is not processing:<\/p>\n <\/div>\n

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                        The critical angle for a beam of light passing from water into air is 48.8 degrees. This mean that all light rays with an angle of incidence greater than this angle will be:<\/p>\n <\/div>\n

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                          A device which has two ways communication is:<\/p>\n <\/div>\n

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                            For a normal person audible frequency range for sound wave lies between:<\/p>\n <\/div>\n

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                              Snell’ law is:<\/p>\n <\/div>\n

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                                Hard disk is made of:<\/p>\n <\/div>\n

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                                  Which form of energy is sound:<\/p>\n <\/div>\n

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                                    The ray of the light after reflection from concave mirror passes through:<\/p>\n <\/div>\n

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                                      Plank suggested that light consists of small packets of energy called: <\/p>\n <\/div>\n

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                                        The angle between incident ray and normal N is;<\/p>\n <\/div>\n

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                                          Angle of incidence is represented by<\/p>\n <\/div>\n

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                                            Regular reflection is reflection by the<\/p>\n <\/div>\n

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                                              The line passing through the two centres of curvatures of the lens is called<\/p>\n <\/div>\n

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                                                Optical centre is represented by<\/p>\n <\/div>\n

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                                                  For a concave lens, the parallel rays appear to come from a. point behind the lens is called; <\/p>\n <\/div>\n

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                                                    In lens number \u00b7of curved surfaces at least;<\/p>\n <\/div>\n

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                                                      Lenses are used in optical devices;<\/p>\n <\/div>\n

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                                                        A magnifying glass is a convex Jens which is used to produce magnified images of small objects. It is also called;<\/p>\n <\/div>\n

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                                                          It is an. optical instrument which is used “to observe distant objects using lens or mirror;<\/p>\n <\/div>\n

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                                                            Human eye acts like;<\/p>\n <\/div>\n

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                                                              Light enters the eye through transparent membrane called;<\/p>\n <\/div>\n

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