COLLEGE ALG.+TRIG.-LOOSELEAF
COLLEGE ALG.+TRIG.-LOOSELEAF
17th Edition
ISBN: 9781264652471
Author: Miller
Publisher: MCG
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Chapter 6.5, Problem 93PE

The refractive index n of a substance is a dimensionless measure of how much light bends (refracts) when passing from one medium to another.

n = c v

where c is the speed of light in a vacuum (a constant) and v is the speed of light in the medium. For example, the refractive index of diamond is 2.42 which means that light travels 2.42 times as fast in a vacuum as it does in a diamond.

Chapter 6.5, Problem 93PE, The refractive index n of a substance is a dimensionless measure of how much light bends (refracts) , example  1
Snell's law is an equation that relates the indices of refraction of two different mediums to the angle of incidence θ 1 and angle of refraction θ 2 . Angles θ 1 and θ 2 are measured from a line perpendicular to the boundary between the two mediums. Use this relationship and the table of refraction indices to complete Exercises 93-94.
n 1 sin θ 1 = n 2 sin θ 2

Chapter 6.5, Problem 93PE, The refractive index n of a substance is a dimensionless measure of how much light bends (refracts) , example  2
93. Assume that a beam of light travels from air into water.
a. If the incidence angle θ 1 is 400, what is the angle of refraction θ 2 ? Round to the nearest tenth of a degree.
b. Alina attempts to spear a lobster from her boat. If she aims her spear directly at the lobster, will she hit it? Explain your answer.

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