ncmom13081 ncmom13081

29-03-2024
Physics

contestada

The radii of curvature of the faces of a double convex lens are 20 cm and 30 cm. If focal length of the lens is 36 cm, find the refractive index of the material of the lens?
1. 1.33
2. 1.2
3. 1.5
4. 1.7

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