COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Question
Chapter 26, Problem 18QAP
To determine
Which option is correct, atoms of an element emit a spectrum that
A. is the same as all other elements.
B. is evenly spaced.
C. is unique to that element.
D. is evenly spaced and unique to that element.
E. is indistinguishable from most other elements.
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Students have asked these similar questions
Afternoon
(1) Stars can be considered ideal blackbodies. A distant star is observed to emit a spectrum
of light with a peak wavelength of A = 962nm.
(a) What is the temperature of this star?
(b) Thanks to other measurements, we find that it gives off 8.17 x 1030J of energy in a
year. What is the radius of the star? Assume the star is a sphere.
(c) Typically, stars become hotter and larger as they age. Assuming this is true, does
our data indicate that this star is older or younger than our Sun?
(d) What will the speed of an electron need to be in order to have a wavelength equivalent
to the peak wavelength for this star?
1. X-rays are scattered by Na crystal. Compare the wavelength of X-rays and the Compton
wavelength of Na atom. What is change in wavelength you see in this Compton scattering?
[MNa=3.82x1026 Kg]
2. X-rays of wavelength 0.2 nm are scattered from a block of carbon. If the scattered radiation is
3. Use this table and graph to collect and analyze data.
Hint: KE=eV in J
1
2
3
4
5
When e = electron charge = 1.6x10^-19C
V- is the Stoping Potencial,
f=c/wave length,
c- is the speed of light on the empty space, c=3*10^8m/s
*
KE max (J)
***
***
wavelength
nm
4.05
4.73
5.32
5.89
6.35
2.5x10-19
2x10-19
1.5x10-19
1x10-19
variable
50M
stopping potential ...
V
1.8
1.2
0.90
0.98
0.48
✔Display Curve Fit Uncertainties
KE max Curve:
y = Ax+B
A: 6.92 x 10-27 +1.25 x 10-27
B: -2.33 x 10-197.39 × 10-20 J
RMSE 2.66 x 10-20 J
T: 0.955
variable
Frequency
55M
HZ
7.41e+7
6.34e+7
5.64e+7
5.09e+7
4.72e+7
X
KE max vs Frequency V
60M
Frequency (HZ)
KE max
2.88e-19
1.92e-19
1.44e-19
1.57e-19
7.68e-20
65M
y
***
70M
●
*
Chapter 26 Solutions
COLLEGE PHYSICS
Ch. 26 - Prob. 1QAPCh. 26 - Prob. 2QAPCh. 26 - Prob. 3QAPCh. 26 - Prob. 4QAPCh. 26 - Prob. 5QAPCh. 26 - Prob. 6QAPCh. 26 - Prob. 7QAPCh. 26 - Prob. 8QAPCh. 26 - Prob. 9QAPCh. 26 - Prob. 10QAP
Ch. 26 - Prob. 11QAPCh. 26 - Prob. 12QAPCh. 26 - Prob. 13QAPCh. 26 - Prob. 14QAPCh. 26 - Prob. 15QAPCh. 26 - Prob. 16QAPCh. 26 - Prob. 17QAPCh. 26 - Prob. 18QAPCh. 26 - Prob. 19QAPCh. 26 - Prob. 20QAPCh. 26 - Prob. 21QAPCh. 26 - Prob. 22QAPCh. 26 - Prob. 23QAPCh. 26 - Prob. 24QAPCh. 26 - Prob. 25QAPCh. 26 - Prob. 26QAPCh. 26 - Prob. 27QAPCh. 26 - Prob. 28QAPCh. 26 - Prob. 29QAPCh. 26 - Prob. 30QAPCh. 26 - Prob. 31QAPCh. 26 - Prob. 32QAPCh. 26 - Prob. 33QAPCh. 26 - Prob. 34QAPCh. 26 - Prob. 35QAPCh. 26 - Prob. 36QAPCh. 26 - Prob. 37QAPCh. 26 - Prob. 38QAPCh. 26 - Prob. 39QAPCh. 26 - Prob. 40QAPCh. 26 - Prob. 41QAPCh. 26 - Prob. 42QAPCh. 26 - Prob. 43QAPCh. 26 - Prob. 44QAPCh. 26 - Prob. 45QAPCh. 26 - Prob. 46QAPCh. 26 - Prob. 47QAPCh. 26 - Prob. 48QAPCh. 26 - Prob. 49QAPCh. 26 - Prob. 50QAPCh. 26 - Prob. 51QAPCh. 26 - Prob. 52QAPCh. 26 - Prob. 53QAPCh. 26 - Prob. 54QAPCh. 26 - Prob. 55QAPCh. 26 - Prob. 56QAPCh. 26 - Prob. 57QAPCh. 26 - Prob. 58QAPCh. 26 - Prob. 59QAPCh. 26 - Prob. 60QAPCh. 26 - Prob. 61QAPCh. 26 - Prob. 62QAPCh. 26 - Prob. 63QAPCh. 26 - Prob. 64QAPCh. 26 - Prob. 65QAPCh. 26 - Prob. 66QAPCh. 26 - Prob. 67QAPCh. 26 - Prob. 68QAPCh. 26 - Prob. 69QAPCh. 26 - Prob. 70QAPCh. 26 - Prob. 71QAPCh. 26 - Prob. 72QAPCh. 26 - Prob. 73QAPCh. 26 - Prob. 74QAPCh. 26 - Prob. 75QAPCh. 26 - Prob. 76QAPCh. 26 - Prob. 77QAPCh. 26 - Prob. 78QAPCh. 26 - Prob. 79QAPCh. 26 - Prob. 80QAPCh. 26 - Prob. 81QAPCh. 26 - Prob. 82QAPCh. 26 - Prob. 83QAPCh. 26 - Prob. 84QAPCh. 26 - Prob. 85QAPCh. 26 - Prob. 86QAPCh. 26 - Prob. 87QAPCh. 26 - Prob. 88QAPCh. 26 - Prob. 89QAPCh. 26 - Prob. 90QAPCh. 26 - Prob. 91QAPCh. 26 - Prob. 92QAPCh. 26 - Prob. 93QAPCh. 26 - Prob. 94QAPCh. 26 - Prob. 95QAPCh. 26 - Prob. 96QAPCh. 26 - Prob. 97QAPCh. 26 - Prob. 98QAPCh. 26 - Prob. 99QAPCh. 26 - Prob. 100QAPCh. 26 - Prob. 101QAPCh. 26 - Prob. 102QAPCh. 26 - Prob. 103QAPCh. 26 - Prob. 104QAP
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