How can the peephole lens in a hotel door have an approximately 180° view? (a) The light moves straight through the lens into the eye. (b) Light from about 908 from the straight-ahead direction is refracted into the observer’s eye if very close to the lens. (c) Light from about 908 from the straight-ahead direction is refracted into the observer’s eye if looking at the lens from inside the room. (d) The outside hall is illuminated so reflected light from the objects inside the 180° angle goes into the lens. (e) Both b and d
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2
Kinematics: Motion in One Dimension
4
Applying Newton’s Laws
5
Circular Motion
6
Impulse and Linear Momentum
10
Vibrational Motion
11
Mechanical Waves
14
Fluids in Motion
15
First Law of Thermodynamics
20
Magnetism
21
Electromagnetic Induction
23
Mirrors and Lenses
24
Wave Optics
Textbook Solutions for College Physics: Explore and Apply
Chapter 23 Problem 93
Question
How can the peephole lens in a hotel door have an approximately \(180^\circ\) view?
(a) The light moves straight through the lens into the eye.
(b) Light from about \(90^\circ\) from the straight-ahead direction is refracted into the observer’s eye if very close to the lens.
(c) Light from about \(90^\circ\) from the straight-ahead direction is refracted into the observer’s eye if looking at the lens from inside the room.
(d) The outside hall is illuminated so reflected light from the objects inside the \(180^\circ\) angle goes into the lens.
(e) Both b and d.
Solution
Step 1 of 3
Refraction is the phenomenon that involves the bending of light as it passes from one transparent medium to another. This phenomenon also occurs with sound, water, and other types of waves. It is because of this refraction or bending that we can make use of lenses, magnifying glasses, prisms, and even observe rainbows.
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Hotel Peephole Lens: Achieving a 180-Degree View Through Refraction
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Uncover the fascinating science behind peephole lenses, including the principles of light refraction and observer positioning that allow for an extensive field of vision through a hotel room door.
Title
College Physics: Explore and Apply 2
Author
Eugenia Etkina, Alan Van Heuvelen, Gorazd Planinši?
ISBN
9780134601823
Hotel Peephole Lens: Achieving a 180-Degree View Through Refraction
Chapter 23 textbook questions
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Chapter 23: Problem 93 College Physics: Explore and Apply 2
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Chapter 23: Problem 68 College Physics: Explore and Apply 2
A telescope consisting of a +3.0-cm objective lens and a +0.60-cm eyepiece is used to view an object that is 20 m from the objective lens. (a) What must be the distance between the objective lens and eyepiece to produce a final virtual image 100 cm to the left of the eyepiece? (b) What is the total angular magnification?
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