A point object O is placed at a distance of 0.3 m from a convex lens (focal length 0.2 m) cut into two halves each of which is displaced by 0.0005 m as shown in figure. Find the distance between the images (in mm)

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answer is 3.

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Detailed Solution

$V = 0 .6 m \Rightarrow \frac{h_{1}}{h_{0}} = \frac{h_{1}}{0 .05} = 2 \Rightarrow h_{1} = 0 .1 cm$
Distance between them = 0.3 cm =3mm

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