Fri December 21, 2012 By: Sureshyadav

The image of a distant object is obtained on a screen by using a concave mirror. The focal length of the mirror can be determined by measuring the distance between..and the following options are a)The object and the mirror. b) The object and the screen. c) The mirror and the screen. d)None of these.

Expert Reply
Mon December 24, 2012
(c) The mirror and the screen
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