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| A convergent lens will become less convergent in; |
Oil Water Both of the above None of these |
| Both of the above |
| Refractive index of oil and water both are greater than the refractive index of lens in air. Hence, the lens which was convex (focal length positive) in air will behave as a concave lens in that liquid. Hence, convex lens becomes less converging in both oil and water. |
