Question

Numerical aperture depends on _____________ refractive indices.​

Answer 1

Answer:

half angle.

Explanation:

The numerical aperture with respect to a point P depends on the half-angle, θ1, of the maximum cone of light that can enter or exit the lens and the ambient index of refraction. As a pencil of light goes through a flat plane of glass, its half-angle changes to θ2.

hope this answer is helpful for you.

Answer 2

Answer:

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