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QAIPMT-2008-Ph-2273: NEET 2008 Physics - Class 12 AIPMT-2008-Ph-2273 Solution: Two thin lenses of focal lengths \(f_1\) and \(f_2\) are in…

Two thin lenses of focal lengths f1f_1 and f2f_2 are in contact and coaxial. The power of the combination is

Multiple Choice Options

  • A f1+f22\frac{f_1+f_2}{2}
  • B f1+f2f1f2\frac{f_1+f_2}{f_1f_2}
  • C f1f2\sqrt{\frac{f_1}{f_2}}
  • D f2f1\sqrt{\frac{f_2}{f_1}}

Step-by-Step Verified Solution

1 f = 1 f 1 + 1 f 2 _ Power P = f 1 + f 2 f 1 f 2

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