College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Textbook Question
Chapter 25, Problem 4PE
A flat minor is neither converging nor diverging. To prove this, consider two rays originating from the same point and diverging at an angle θ. Show that after striking a plane mirror, the angle between their directions remains θ.
Figure 25.52 A flat mirror neither converges nor diverges light rays. Two rays continue to diverge at the same angle after reflection.
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A flat mirror is neither converging nor diverging. To prove this, consider two rays originating from the same point and diverging at an angle θθ (see below). Show that after striking a plane mirror, the angle between their directions remains θ.θ.
Let IB and OB be distances from the plane mirror to the image and object, respectively. Show that IB = OB. Prove that image and object have the same size.
A ray of light travels through air until it strikes the interface between the air and another medium. The incident ray makes an angle of
?1 = 41.0°
with the normal, as shown in the figure below. Upon passage into the second medium, the ray is refracted, emerging from the interface at an angle
?2
with respect to the normal.
A light ray in air is moving down and to the right and is incident on a second medium. It makes an angle ?1 with the vertical. Inside the vertical, it continues to move down and to the right but at a steeper slope than the incident ray. It makes an angle ?2 with the vertical.
(a)
Suppose that the second medium is flint glass. What is the angle of refraction,
?2
(in degrees)? (Enter your answer to at least one decimal place.)
Answer in degrees°
(b)
Suppose that the second medium is crown glass. What is the angle of refraction,
?2,
in this case (in degrees)? (Enter your answer to at least one decimal place.)
Answer in degrees °
(c)
Finally, suppose that…
Chapter 25 Solutions
College Physics
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