COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 26, Problem 26QAP
To determine
What de Broglie's wavelength depends upon
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3. Using the average speed of a gas, (8RT?MW)1/2, determine the average de Broglie wavelength for an He atom at 25 °C and at 500 °C.How fast would the He atom need to travel in order to have the same linear momentum as a 500 nm photon?
•19 O Figure 39-28a shows the energy-level diagram for a fi-
nite, one-dimensional energy well that contains an electron. The
nonquantized region begins at E= 450.0 eV. Figure 39-28b gives
the absorption spectrum of the electron when it is in the ground
state-it can absorb at the indicated wavelengths: A=14.588 nm
and Ag = 4.8437 nm and for any wavelength less than A, = 2.9108
nm. What is the energy of the first excited state?
%3D
- Nonquantized
E4
Es
E2
(b)
(a)
Energy
#
A particle of matter is moving with a kinetic energy of 5.27 eV. Its de Broglie wavelength is 4.38 x 10^-12 m. What is the mass of the particle?
2.45E-26 kg
1.36E-26 kg
4.08E-27 kg
1.90E-26 kg
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
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