17th Edition

ISBN: 9781938168185

Author: William Moebs, Jeff Sanny

Publisher: OpenStax

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Textbook Question

Chapter 1, Problem 89AP

(a) On a day when the intensity of sunlight is

1.00 kW/m 2 , a circular lens 0.200 m in diameter focuses

light onto water in a black beaker. Two polarizing sheets

of plastic are placed in front of the lens with their axes at

an angle of 20.0°. Assuming the sunlight is unpolarized and the polarizers are 100% efficient, what is the initial rate of heating of the water in °C/s, assuming it is 80.0%

absorbed? The aluminum beaker has a mass of 30.0 grams and contains 250 grams of water. (b) Do the polarizing filters get hot? Explain.

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Chapter 1, Problem 88AP

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On a day when the intensity of sunlight is 1.00 kW / m2,a circular lens 0.200 m in diameter focuses light onto water ina black beaker. Two polarizing sheets of plastic are placed infront of the lens with their axes at an angle of 20.0º.Assuming the sunlight is unpolarized and the polarizers are100% efficient, what is the initial rate of heating of the waterin ºC / s , assuming it is 80.0% absorbed? The aluminumbeaker has a mass of 30.0 grams and contains 250 grams ofwater. (b) Do the polarizing filters get hot? Explain.

(a) At what angle of incidence will the light reflected from water be completely polarized? (b) Does this angle depend on the wavelength of the light?

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Chapter 1 Solutions

University Physics Volume 3

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Ch. 1 - Speculate as to s1at physical process might be...Ch. 1 - Using the law of reflection, explain how powder...Ch. 1 - Diffusion by reflection from a rough surface is...Ch. 1 - Will 1igt change direction toward or away from the...Ch. 1 - Exp1ain why an object in water always appears to...Ch. 1 - Explain why a person’s legs appear very short when...Ch. 1 - Explain why an oar that is partially submerged in...Ch. 1 - A ring with a colorless gemstone is dropped into...Ch. 1 - The most common type of mirage is an illusion that...Ch. 1 - How can you use total internal reflection to...Ch. 1 - Is it possible that total internal reflection...Ch. 1 - A high-quality diamond may be quite clear and...Ch. 1 - How do wave effects depend on the size of the...Ch. 1 - Does Huygens’s principle apply to all types of...Ch. 1 - If diffraction is observed for some phenomenon, it...Ch. 1 - Can a sound wave in air be polarized? 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