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  4. A thin bi-convex lens made out of a material of refractive index μ 1 is placed in a medium of refractive index μ 2 . A paraxial beam of light, parallel to the principal axis of the lens, is shown in the figure. Based on the ray diagram, we can conclude that <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-stga5byvwvno.png />

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Q. A thin bi-convex lens made out of a material of refractive index $\mu _{1}$ is placed in a medium of refractive index $\mu _{2}$ . A paraxial beam of light, parallel to the principal axis of the lens, is shown in the figure. Based on the ray diagram, we can conclude that

Question

NTA AbhyasNTA Abhyas 2020Ray Optics and Optical Instruments

Solution:

A bi-convex lens acts as a diverging lens when it is placed in a denser medium.