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On ray optics class 12 pdf 5. We combine two lenses, one is convex and other is concave having focal lengths /, and f2 and their combined focal length is F. Combination of the lenses will behave like concave lens, if (a) f1 > f2 (b) f1 = f2 (c) f1 < f2. (d) f1 ≤ f2 |
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Answer» has BRAINLIEST PLEASE... |
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