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The ratio of the focal lengths of a convex lens when kept in air and when it is immersed in a liquid is 1: 2 . If the refractive index of the material of the lens is 1.5, then the refractive index of the liquid is

Options

  1. A1.20
  2. B1.30
  3. C1.25
  4. D1.35

Correct answer

A. 1.20

Step-by-step solution

No Solution

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