What is the focal length of a mirror whos magnification is m = +1?
Asked by | 24th Jan, 2010, 12:10: PM
Magnification = Image height/Object height = -image distance/object distance.
Since magnification = +1
Image distance = -Object distance.
1/Focal Length = 1/Image distance + 1/Object distance.
1/Focal Length = 0
Focal Length = Infinity.
Answered by | 24th Jan, 2010, 02:45: PM
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