Categories > Ray Optics and Optical Instruments > Refraction at Curved Surface > A double convex thin lens made of glass (refractive index $\mu = 1.5$) has both radii of curvature of magnitude $20 cm$. Incident light rays parallel to the axis of the lens will converge at a distance $L$ such that

Ray Optics and Optical Instruments

Question: A double convex thin lens made of glass (refractive index $\mu = 1.5$) has both radii of curvature of magnitude $20 cm$. Incident light rays parallel to the axis of the lens will converge at a distance $L$ such that


1) $L = 20 cm$
2) $L = 10 cm$
3) $L = 40 cm$
4) $L = 20 / 3 cm$
Solution: Explanation: No Explanation
Refraction at Curved Surface

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