Question
A lens forms an image of magnification -2. If the object
is placed 15 cm from the lens, what is the image distance?Solution
Magnification (m) = -v / u -2 = -v / 15 v = 30 cm Since m is negative, the image is on the same side as the object, so the distance is -30 cm.
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Leading questions
According to section 32 of the Specific Relief Act an instrument can be cancelled in part when____________
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