Conceptual Physics C2009 Guided Reading & Study Workbook Se
9th Edition
ISBN: 9780133647396
Author: Prentice Hall
Publisher: Prentice Hall
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Textbook Question
Chapter 29, Problem 31A
On a steamy mirror, wipe an area just large enough to allow you to see your full face. How tall will the wiped area be compared with the vertical dimension of your face?
Expert Solution & Answer
To determine
To Explain: The length of wiped area.
Answer to Problem 31A
The length of the wiped area would be same as the length of the face.
Explanation of Solution
Introduction: Angle of reflection is equals to angle of incidence. The law of reflection applies to both, totally reflected waves and partially reflected.
Explanation: When light hits a plane mirror, it reflects outward at the same angle. The lime of a person’s vision will be the path of light from the eye to top and bottom edges of the exposed region of the mirror. Means that the taller exposed region of the mirror is, the more persons face is seen. Also, closer to the mirror, the mirror shows a larger face.
According to the question, the mirror must be half as large as your face, in both length and width dimensions, regardless of where the mirror is held.
Conclusion: The mirror must be large enough.So, rays drawn from a person’s eye to entire virtual image of that person’s head strike reflecting surface.
Chapter 29 Solutions
Conceptual Physics C2009 Guided Reading & Study Workbook Se
Ch. 29 - What becomes of a waves energy when the wave is...Ch. 29 - Why do smooth metal surfaces make good mirrors?Ch. 29 - Prob. 3ACh. 29 - Prob. 4ACh. 29 - Prob. 5ACh. 29 - When you view your image in a plane mirror, how...Ch. 29 - In what way does the law of reflection hold for...Ch. 29 - Prob. 8ACh. 29 - What is meant by the idea that a surface may be...Ch. 29 - Distinguish between an echo and a reverberation.
Ch. 29 - Prob. 11ACh. 29 - Distinguish between reflection and refraction.Ch. 29 - When a wave crosses a surface at an angle from one...Ch. 29 - What is the orientation of a ray in relation to...Ch. 29 - Give an example where refraction is abrupt, and...Ch. 29 - Prob. 16ACh. 29 - Prob. 17ACh. 29 - If you can see the face of a friend who is...Ch. 29 - Prob. 19ACh. 29 - Prob. 20ACh. 29 - Is daytime a bit longer or is it a bit shorter...Ch. 29 - As light passes through a transparent medium, it...Ch. 29 - Why does blue light refract at greater angles than...Ch. 29 - Prob. 24ACh. 29 - Prob. 25ACh. 29 - Prob. 26ACh. 29 - Prob. 27ACh. 29 - Wheels from a toy cart are rolled from a concrete...Ch. 29 - Identical rays of light enter three transparent...Ch. 29 - Prob. 30ACh. 29 - On a steamy mirror, wipe an area just large enough...Ch. 29 - Suppose that a mirror and three lettered cards are...Ch. 29 - Prob. 33ACh. 29 - Prob. 34ACh. 29 - Prob. 35ACh. 29 - Prob. 36ACh. 29 - Why is an echo weaker than the original sound?Ch. 29 - Suppose you are standing downwind from a barking...Ch. 29 - Does the reflection of a scene in calm water look...Ch. 29 - If you were spearing a fish with a spear, would...Ch. 29 - The photo below shows two identical cola bottles,...Ch. 29 - How do the different speeds of light in thin air...Ch. 29 - Very short pulses of red light and blue light...Ch. 29 - Prob. 44ACh. 29 - Prob. 45ACh. 29 - Prob. 46ACh. 29 - Prob. 47ACh. 29 - When light strikes glass perpendicularly, about 4%...Ch. 29 - Suppose you walk toward a mirror at 1 m/s. How...Ch. 29 - A radio wave sent into space strikes an asteroid...Ch. 29 - A spider hangs by a strand of silk at eye level 20...Ch. 29 - Prob. 52ACh. 29 - Stand in front of a mirror and put two pieces of...Ch. 29 - What effect does your distance from the mirror...Ch. 29 - Prob. 55A
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