com www.GOALias.blogspot.com www.GOALias ... - fun learning

www.GOALias.blogspot.comFig. 15.17 A dentist examining a patientBoojho observed his image in theshiny surface of the bell on his newbicycle. He found that his image waserect and smaller in size. He wonderedif the bell is also a kind of sphericalmirror. Can you recognise the type ofthe mirror?Note that the reflecting surface of thebell is convex.Activity 15.8Repeat Activity 15.7 now with a convexmirror in place of a concave mirror(Fig. 15.19). Record your observationsin a Table similar to Table 15.1.Could you get a real image at anydistance of the object from the convexConcave surfaceFig. 15.18 Reflector of a torchFig. 15.19 Image formed by a convex mirrorTable 15.1 Image formed by a concave mirror for objectplaced at different distances from itDistance of the object fromSmaller/larger Character of the imagethe mirrorthan the objectInverted/ erectReal/virtual50 cm … …40 cm … …30 cm20 cm10 cm …5 cm182SCIENCE