3. You're in a room (with no windows) that is lit up by "white" light coming from a light bulb. a. What colors of light are being produced by the light bulb? (Hint: the possible colors are red, green, and blue) b. A toy fire truck in the room appears red. What colors of light is the truck reflecting? What colors of light is the truck absorbing? Explain. c. The walls of the room appear blue. What colors of light are the walls reflecting? What colors of light are the walls absorbing? Explain.

3. You're in a room (with no windows) that is lit up by "white" light coming from a light bulb. a. What colors of light are being produced by the light bulb? (Hint: the possible colors are red, green, and blue) b. A toy fire truck in the room appears red. What colors of light is the truck reflecting? What colors of light is the truck absorbing? Explain. c. The walls of the room appear blue. What colors of light are the walls reflecting? What colors of light are the walls absorbing? Explain.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter16: Fundamentals Of Light

Section: Chapter Questions

Problem 65A

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Similar questions

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In each of the following situations, a wave passes through an opening in an absorbing wall. Rank the situations in order from the one in which the wave is best described by the ray approximation to the one ill which the wave coming through the opening spreads out most nearly equally in all directions in the hemisphere beyond the wall, (a) The sound of a low whistle at 1 kHz passes through a doorway 1 m wide, (b) Red light passes through the pupil of your eye. (c) Blue light passes through the pupil of your eye. (d) The wave broadcast by an AM radio station passes through a doorway 1 m wide, (e) An x-ray passes through the space between bones in your elbow Joint.
(a) Is light from the sky polarized? (b) Why is it that clouds seen through Polaroid glasses stand out in bold contrast to the sky?
Unreasonable Results To save money on making military aircraft invisible to radar, an inventor decides to coat them with a non-reflective material having an index of refraction of 1.20, which is between that of air and the surface of the plane. This, he reasons, should be much cheaper than designing Stealth bombers. (a) What thickness should the coating be to inhibit the reflection of 4.00-cm wavelength radar? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?
A film of MgF2 (n = 1.38) having thickness 1.00 105 cm is used to coat a camera lens. (a) What are the three longest wavelengths that are intensified in the reflected light? (b) Are any of these wavelengths in the visible spectrum?
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What type of experimental evidence indicates that light is a wave?
A pure red object on a black background seems to disappear when illuminated with pure green light. Explain why.
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6. In a room lit by white light, you see a yellow shirt. (You see yellow when both green and red light reach your eyes together). a. What kinds of light is the shirt reflecting? What kinds of light is the shirt absorbing? b. If the room is lit only by red light instead, what will the shirt look like? Explain.
You are in a room lit only by blue light. A chair in that room looks black to you. (Your eyes see red + green light as yellow; your eyes see red+ blue light as magenta; your eyes see green and blue light as cyan) a. What colors of light is the chair reflecting in the blue room? What colors of light is the chair absorbing in that room? Explain. b. You then move the chair out into the sunlight. What possible colors could the chair be in the sunlight? Explain.