The focal length of the human eye is approximately 1.7 cm. (a) What is the -number for

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The focal length of the human eye is approximately 1.7 cm.
(a) What is the ƒ-number for the human eye in bright light, when the pupil diameter is 2.0 mm?
(b) What is the ƒ-number in dim light, when the pupil diameter has expanded to 7.0 mm?

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Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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Question Posted: Aug 31, 2017 12:27 PM

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The focal length of the human eye is approximately 1.7 cm. (a) What is the -number for

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