A lens is cut into two equal halves: Along the principal axis.
What will be the focallength of each half?
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If the lens can be cut on the principal axis and then there is no change in length of the focus of lens because the radius of curvature will remain the same, hence the focal length will remain unchanged.
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When an object is placed at a distance of 36cm from a convex lens, an image of the same size as the object is formed. What will be the nature of image formed when the object is placed at a distance of:
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