JEE · NEET Previous Year Question
A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination oflenses. The power in diopters of the combination is
Topic: NEET PYQ
Answer: A. Full step-by-step solution below.
- Azero
- B25
- C50
- Dinfinite.
Correct answer: A
Solution
(a) : Focal length of convex lens cm Focal length of concave lens cmPower of combination in dioptres,
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