The following figure represents two biconvex lenses L₁ and L₂ having focal length 10 cm and 15 cm respectively. The distance between L₁ & L₂ is :

Question

G1 Physics · Accepted Answer

Image For parallel rays to emerge after passing through the second convex lens, the image formed by the first lens must lie at the first focus of the second lens. Therefore: D = f₁ + f₂ = 10 + 15 = 25 cm

The following figure represents two biconvex lenses L₁ and L₂ having focal length 10 cm and 15 cm respectively. The distance between L₁ &amp; L₂ is :

The following figure represents two biconvex lenses L₁ and L₂ having focal length 10 cm and 15 cm respectively. The distance between L₁ & L₂ is :