Optics 2 Question 20
20. A slab of material of refractive index 2 shown in figure has a curved surface of radius of curvature and a plane surface . On the left of is air and on the right of is water with refractive indices as given in the figure. An object is placed at a distance of from the pole as shown. The distance of the final image of from , as viewed from the left is ……
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Answer:
Correct Answer: 20.
Solution:
- Rays starting from
will suffer single refraction from spherical surface . Therefore, applying
Therefore, image of