Categories > Ray Optics and Optical Instruments > Refraction at Curved Surface > A concave lens of glass, refractive index $1.5$, has both surfaces of same radius of curvature R. On immersion in a medium of refractive index $1.75$, it will behave as a

Ray Optics and Optical Instruments

Question: A concave lens of glass, refractive index $1.5$, has both surfaces of same radius of curvature R. On immersion in a medium of refractive index $1.75$, it will behave as a


1) Convergent lens of focal length $3.5 R$
2) Convergent lens of focal length $3.0 R$
3) Divergent lens of focal length $3.5 R$
4) Divergent lens of focal length $3.0 R$
Solution: Explanation: No Explanation
Refraction at Curved Surface

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