An object is placed 10cm from a converging lens of foal l...
An object is placed 10cm from a converging lens of foal length 15cm. Calculate the magnification of the image formed
3.0
1.5
0.6
0.3
Correct answer is C
* produces a virtual image when object distance(u) is less than its focal length(f).
1f=1u−1v
1v=1f+1u
115+110=2+330
1v=530
v = 6.0 cm
but m = vu=610=0.6
Note that the negative sign only shows the placement of the image. It has no effect on the magnification basically.
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