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13-05-2018
Physics

contestada

What is the aperture diameter of a 12-mm-focal-length lens set to f/4.0?

Respuesta :

22-05-2018

fn = f/d, where fn = ratio of focal length (f) to aperture diameter (d). In the given scenario, d is given as 4. That is,

Lens have been set at f/4.0 and therefore, d = 4.0 mm.

Therefore, aperture diameter is 4.0 mm.

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