where should an object be placed so than a real and inverted image of same size is obtained by a convex lens of focal length 10 A)10cm B)infinity C)20cm D)15cm need explanation
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Answer:
option (C) 20cm
Explanation:
To form real and inverted image of same size
that of the object, the object should be placed at C1 or 2F1(centre of curvature) on the left side of the convex lens. Now
if focel length=10cm
then Radius of curvature (R)=2f=20cm
which is equal to object distance(u)=20cm
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