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Solve the following.
Two identical thin convex lenses, each having an optical power of are kept in contact with each…
Two identical thin convex lenses, each having an optical power of $2\text{ D}$ are kept in contact with each other. Calculate focal length of the combination.
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From ISC 2025 Improvement Physics Paper 1, question 16(i).
Check your working with the Lens and mirror calculator: image distance, magnification and nature for any lens or mirror, with the ray diagram.
Check your working with the Physics formula calculator: about 145 ISC Physics formulas: fill in what you know, with units, and get the rest.