Question

what do you mean by crossed lens?​

Answer 1

Answer: Here's your answer

Explanation:

Crossed Lens is a double-convex lens whose ratio for a refractive index is 1:6. It produces minimum spherical aberration for parallel incident rays. Double-Convex Lenses are used in image relay applications, or for. imaging objects at close conjugates.

Answer 2

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$\bf \underline{crossed \: lens}$

a double-convex lens with one radius equal to six times the other.