Solution for Lab Quiz 26 Optical Elements
Solution to Lab Quiz Problem 26.1(Wavelength of Orange Laser)
Problem:
Orange light with wavelength
600nm
in vac
uum is incident on a material with index of refraction
50
.
Calculate the velocity and frequency of the light in the
material.
Select One of the Following:
(a)
3
×
10
8m
s
,
1
×
10
13
Hz
.
(b)
6
×
10
6m
s
,
1
×
10
13
Hz
.
(c)
6
×
10
6m
s
,
5
×
10
5
Hz
.
(dAnswer)
6
×
10
6m
s
,
5
×
10
14
Hz
.
(e) Toby
Solution
The velocity of light in a material is reduced by the index
of refraction
c
n
=
c/n
= 3
×
10
8m
s
/
50 = 6
×
10
6m
s
. The
frequency in the material is the same as the frequency in
vacuum. The frequency is related to the wavelength by
f
=
c
λ
=
3
×
10
8m
s
600
×
10
−
9
m
= 5
×
10
14
Hz
Total Points for Problem: 3 Points
Solution to Lab Quiz Problem 26.2(Image Distance From Convex Mirror)
1
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View Full DocumentProblem:
A convex mirror has a radius of curvature
of magnitude

r

= 50
.
cm
. An object is
20
.
cm
from the
mirror. Compute the image distance.
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 Spring '10
 Stewat
 Light, Lab Quiz Problem

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