The following figure represents two biconvex lenses $L_{1}$ and $L_{2}$ having focal length $10 cm$ and $15 cm$ respectively. The distance between $L_{1} & L_{2}$ is :

Question

The following figure represents two biconvex lenses L 1 ​ and L 2 ​ having focal length 10 cm and 15 cm respectively. The distance between L 1 ​ & L 2 ​ is :

TestHub · Accepted Answer

D = f 1 ​ + f 2 ​ = 25 cm Paraxial parallel rays pass through focus and ray from focus of convex lens will become parallel

Physics - Geometrical Optics Question with Solution | TestHub

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