when a lens of focal length f is cut into two equal halves perpendicular to principal Axis what is the focal length of each half
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If lens is cut along the principal axis then there will be no change in the focal length of lens. but it is cut perpendicular to principal axis, then focal length will be twice the original one.
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A lens is cut into two equal halves along the principal axis and perpendicular to principal axis what will be the focal length of each half
If lens is cut along the principal axis then there will be no change in the focal length of lens. but it is cut perpendicular to principal axis, then focal length will be twice the original one.
Explanation:
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