Question

The numerical aperture is constant for each lens.

(a) True

(b) False

The question was asked by my college director while I was bunking the class.

My question is from Techniques topic in section Techniques in Cell Biology of Cell Biology

Answer 1

The correct option is (a) True

To explain: The numerical aperture is the measure of light gathering capacity of a lens. It is constant for each lens and is represented by the following equation – n*Sin*α. The refractive index of medium present is denoted by ‘n’.