A camera has an aperture of 2.0 cm and a lens with f = 4.2 cm. (a)

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A camera has an aperture of 2.0 cm and a lens with f = 4.2 cm.

(a) What is the f-number?

(b) If the f-number is reduced by a factor of three, by what factor should the exposure time be changed to have the same total light energy strike the detector?

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College Physics Reasoning and Relationships

ISBN: 978-0840058195

2nd edition

Authors: Nicholas Giordano

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Question Posted: Jul 19, 2024 02:03 PM

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A camera has an aperture of 2.0 cm and a lens with f = 4.2 cm. (a)

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The fnumber is related to the diameter of the lens aperture and the focal length Since t...View the full answer

College Physics Reasoning and Relationships

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