Focal length of each part is same as that of original lens.
Class 12 Physics
Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
A lens of focal length f is splitted into two parts. What is the focal length of either part?
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Focal length of each part is same as that of original lens.
Class 12 Physics
Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
When a lens of focal length
f is split into two equal parts along its optical axis, each part retains the same focal length
f, as the lens’s curvature and refractive power remain unchanged.
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