As nearly morning passed toward midday, and the sunlight got more intense, a photographer noted that, if

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As nearly morning passed toward midday, and the sunlight got more intense, a photographer noted that, if she kept her shutter speed constant, she had to change the f -number from f /5.6 to f /22. By what factor had the sunlight intensity increased during that time?
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Foundations of Financial Management

ISBN: 978-1259024979

10th Canadian edition

Authors: Stanley Block, Geoffrey Hirt, Bartley Danielsen, Doug Short, Michael Perretta

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