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Show mathematically that to produce an image that is the same size as the object in a concave mirror, the object needs to be at...Asked by Juniper
Show mathematically that to produce an image that is the same size as the object in a concave mirror, the object needs to be at twice the focal length from the mirror.
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Answered by
bobpursley
1/o + 1/o=1/f
1/2f + 1/i=1/f
1/i=1/2f
i=2f
M=di/do= 2f/2f= 1
check my thinking.
1/2f + 1/i=1/f
1/i=1/2f
i=2f
M=di/do= 2f/2f= 1
check my thinking.
Answered by
Juniper
I'm sorry, but I'm not really understanding this; could you please xplain?
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