Question

what is mean by aperture of lens​

Answer 1

the total length of lens is known as aprture of length

Answer 2

Hey mate

Here is your Answer

The lens aperture is usually specified as an f-number, the ratio of focal length to effective aperture diameter. A lens typically has a set of marked "f-stops" that the f-number can be set to. A lower f-number denotes a greater aperture opening which allows more light to reach the film or image sensor

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