Posted by ashley on Wednesday, October 15, 2008 at 1:09am.
Can someone check me on this please.
the formula is:
1/d1 = (1/f)-(1/d0)
where
d1 = image distance
f = focal length of the mirror(object height)
d0 = object distance from the mirror
giving you:
1/d1 = (1/15mm) - (1/5mm)
1/d1 = -0.1333333 recurring
take the inverse of this number giving:
d1(image distance) = -0.1333333^-1
d1(image distance) = -7.5mm
If it is a plane mirror the image appears to be as far behind the mirror as the object is in front.
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