Figure shows a convex lens cut symmetrically into two equal halves and separated laterally by a distance h. A point object O placed symmetrically at a distance 30 cm, from the lens halves, forms two images separated by a distance d. A plot of d versus h is shown in figure. The focal length of the lens is :-
Physics · Geometrical optics · lens and combination lens,silvered lens
Figure shows a convex lens cut symmetrically into two equal halves and separated laterally by a distance h. A point object O placed symmetrically at a distance 30 cm, from the lens halves, forms two images separated by a distance d. A plot of d versus h is shown in figure. The focal length of the lens is :-
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