Physics: Principles with Applications
Physics: Principles with Applications
6th Edition
ISBN: 9780130606204
Author: Douglas C. Giancoli
Publisher: Prentice Hall
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Chapter 25, Problem 1P
To determine

The fstop required for a shutter speed of 1400s

Expert Solution & Answer
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Answer to Problem 1P

Solution:

The fstop required for a shutter speed of 1400s is f/8.

Explanation of Solution

If exposure time is reduced by 1/8, the area of the lens opening must increase by a factor of 4. Since area is proportional to square of the diameter, the diameter of the lens opening must be increased by a factor of 2.

But fstop=fD, if diameter of the opening of a lens increases by a factor of 2, the fstop of will reduce by a factor of 2. Hence new fstop will be f/8.

Chapter 25 Solutions

Physics: Principles with Applications

Ch. 25 - Prob. 11QCh. 25 - Explain why chromatic aberration occurs for thin...Ch. 25 - Prob. 13QCh. 25 - Prob. 14QCh. 25 - Prob. 15QCh. 25 - Prob. 16QCh. 25 - Prob. 17QCh. 25 - Prob. 18QCh. 25 - Prob. 1PCh. 25 - Prob. 2PCh. 25 - Prob. 3PCh. 25 - Prob. 4PCh. 25 - Prob. 5PCh. 25 - Prob. 6PCh. 25 - If a 135-mm telephoto lens is designed to cover...Ch. 25 - Prob. 8PCh. 25 - Prob. 9PCh. 25 - A person struggles to read by holding a book at...Ch. 25 - Prob. 11PCh. 25 - An eye is corrected by a - 5.50-D lens, 2.0 cm...Ch. 25 - Prob. 13PCh. 25 - Prob. 14PCh. 25 - A person has a far point of 14 cm. What power...Ch. 25 - Prob. 16PCh. 25 - Prob. 17PCh. 25 - Prob. 18PCh. 25 - Prob. 19PCh. 25 - Prob. 20PCh. 25 - Prob. 21PCh. 25 - Prob. 22PCh. 25 - Prob. 23PCh. 25 - Prob. 24PCh. 25 - A magnifying glass with a focal length of 9.2 cm...Ch. 25 - Prob. 26PCh. 25 - Prob. 27PCh. 25 - Prob. 28PCh. 25 - Prob. 29PCh. 25 - A 7.0x binocular has 3.5-cm-focal-length...Ch. 25 - Prob. 31PCh. 25 - 35. (II) An astronomical telescope has its two...Ch. 25 - 36. (II) A Galilean telescope adjusted for a...Ch. 25 - Prob. 34PCh. 25 - Prob. 35PCh. 25 - Prob. 36PCh. 25 - Prob. 37PCh. 25 - Prob. 38PCh. 25 - Prob. 39PCh. 25 - Prob. 40PCh. 25 - Prob. 41PCh. 25 - Prob. 42PCh. 25 - A microscope has a 14.0x eyepiece and a 60.0x...Ch. 25 - Repeat Problem 46 assuming that the final image is...Ch. 25 - Prob. 45PCh. 25 - An achromatic lens is made of two very thin...Ch. 25 - Prob. 47PCh. 25 - Prob. 48PCh. 25 - Prob. 49PCh. 25 - Two stars 18 light-years away are barely resolved...Ch. 25 - Prob. 51PCh. 25 - Prob. 52PCh. 25 - Prob. 53PCh. 25 - Prob. 54PCh. 25 - Prob. 55PCh. 25 - Prob. 56PCh. 25 - Prob. 57PCh. 25 - Prob. 58GPCh. 25 - Prob. 59GPCh. 25 - Prob. 60GPCh. 25 - Prob. 61GPCh. 25 - Prob. 62GPCh. 25 - Prob. 63GPCh. 25 - Prob. 64GPCh. 25 - Prob. 65GPCh. 25 - Prob. 66GPCh. 25 - Prob. 67GPCh. 25 - Prob. 68GPCh. 25 - Prob. 69GPCh. 25 - Prob. 70GPCh. 25 - Prob. 71GPCh. 25 - Prob. 72GPCh. 25 - Prob. 73GPCh. 25 - Prob. 74GP
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