Modern Physics
2nd Edition
ISBN: 9780805303087
Author: Randy Harris
Publisher: Addison Wesley
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Question
Chapter 10, Problem 1CQ
To determine
To Explain:The energies in the lower band and upper bandis roughly equal to that of the
Expert Solution & Answer
Explanation of Solution
Introduction:
An electron’s kinetic energy for
The separation is large for an electron at molecular state
Conclusion:
The energy of molecular state and energy of
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Students have asked these similar questions
1.7 A crystal has a basis of one atom per lattice point and a set of primitive translation
vectors (in A):
c = 1.5(i + j+ k),
a = 3i,
where i, j and k are unit vectors in the x, y and z directions of a Cartesian coordinate
system. What is the Bravais lattice type of this crystal, and what are the Miller indices
of the set of planes most densely populated with atoms? Calculate the volumes of the
primitive unit cell and the conventional unit cell.
b= 3j.
Calculate the surface density of the lattice atoms that lie on the (100) plane of a BCC crystal???
Please solve it quickly by handwritten
Next nearest neighbor interactions. Consider a monatomic lattice. The potential
energy of the crystal system, modeled as a linear chain of atoms is UpE. = 1/(2 a)E„x?
where n runs over all the atoms in the chain and x, is the net displacement of the
n'th atom.
(a) Show that if the atom is interacting with p atoms on either side instead of one
(as we discussed in class), the the force acting on the n'th atom is given by,
Fn
-Eap(un – Un+p);
+p
where a, represents the force constant between atoms numbered n and n+ p.
(b) Let's now consider an atom interacting with four neighboring atoms, two on each
side (i.e., p = 2). If a and m have the usual meanings, show that the dispersion
relation is given by,
4a
sin? (등) (1+ 4 cos? (등)).
qa
qa
w?
т
Chapter 10 Solutions
Modern Physics
Ch. 10 - Prob. 1CQCh. 10 - Prob. 2CQCh. 10 - Prob. 3CQCh. 10 - Of N2,O2 , and F2 , none has an electric dipole...Ch. 10 - It takes less energy to dissociate a diatomic...Ch. 10 - Prob. 6CQCh. 10 - Prob. 7CQCh. 10 - Prob. 8CQCh. 10 - Prob. 9CQCh. 10 - Prob. 10CQ
Ch. 10 - Prob. 11CQCh. 10 - In the boron atom, the single 2p electron does not...Ch. 10 - Prob. 13CQCh. 10 - Prob. 14CQCh. 10 - Prob. 15CQCh. 10 - Prob. 16CQCh. 10 - Prob. 17CQCh. 10 - Prob. 18CQCh. 10 - Prob. 19CQCh. 10 - Prob. 20CQCh. 10 - Prob. 21CQCh. 10 - Prob. 22CQCh. 10 - In a buckyball three of the bonds around each...Ch. 10 - Prob. 24CQCh. 10 - Prob. 25ECh. 10 - Prob. 26ECh. 10 - Prob. 27ECh. 10 - Prob. 28ECh. 10 - Prob. 29ECh. 10 - Prob. 30ECh. 10 - Prob. 31ECh. 10 - Prob. 32ECh. 10 - Prob. 33ECh. 10 - Prob. 34ECh. 10 - By expanding an arbitrary U(x) in a power series...Ch. 10 - Prob. 36ECh. 10 - Prob. 37ECh. 10 - Prob. 38ECh. 10 - Prob. 39ECh. 10 - Prob. 40ECh. 10 - Prob. 41ECh. 10 - Prob. 42ECh. 10 - Prob. 43ECh. 10 - As noted in Example 10.2, the HD molecule differs...Ch. 10 - Prob. 45ECh. 10 - Prob. 46ECh. 10 - Prob. 47ECh. 10 - Prob. 48ECh. 10 - Prob. 49ECh. 10 - Prob. 50ECh. 10 - Prob. 51ECh. 10 - Prob. 52ECh. 10 - Prob. 53ECh. 10 - Prob. 54ECh. 10 - Carry out the integration indicated in equation...Ch. 10 - Prob. 56ECh. 10 - Prob. 57ECh. 10 - Prob. 58ECh. 10 - Prob. 59ECh. 10 - Prob. 60ECh. 10 - Prob. 61ECh. 10 - Prob. 62ECh. 10 - Prob. 63ECh. 10 - Prob. 64ECh. 10 - Prob. 65ECh. 10 - Prob. 66ECh. 10 - Prob. 67ECh. 10 - Prob. 68ECh. 10 - Prob. 69ECh. 10 - Prob. 70ECh. 10 - Prob. 71ECh. 10 - Prob. 72ECh. 10 - Prob. 73ECh. 10 - Prob. 74ECh. 10 - The magnetic field at the surface of a long Wire...Ch. 10 - Prob. 76ECh. 10 - Prob. 77CECh. 10 - Prob. 78CECh. 10 - Prob. 79CE
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