MODERN PHYSICS (LOOSELEAF)
4th Edition
ISBN: 9781119495550
Author: Krane
Publisher: WILEY
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Chapter 9, Problem 27P
(a)
To determine
Sketch of the diagram, showing all possible absorption transition from the
(b)
To determine
Sketch of the diagram, all label each transition with the initial and final quantum numbers
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4. Liner ionic crystal. Consider a line of 2N ions of alternating charge ±q with a
repulsive potential energy A/R" between nearest neighbors. (a) Show that at the
equilibrium separation
(CGS)
(b) Let the crystal be compressed so that R. → R. (1-8). Show that the work done
in a compressing a unit length of the crystal has the leading term C8²/2, where
2
(n-1)q² In 2
(CGS)
C =
U(R):
=
2Nq² In 2 (₁-1).
Ro
n
Ro
To obtain the results in SI, replace q² by q²/4л. Note: We should not expect to
obtain this result from the expression for U(R), but we must use the complete
expression for U(R).
Consider the wave function shown below. If the linear molecule has a length L=1.6 nm, What is the value of the u(x) at the the point
indicated by the arrow for an n=1 electron? Give your answer in nm-1/2 to 2 decimal places. Do not include bond angle corrections. Do
NOT include units in your answer.
x=0
x=2/3L
x=L
In a H-atom series, the shortest wavelength transition is registered at 821 nm. plsease explain the step by step
(1) Identify the transition.
(2) Calculate the energy of the above transition in J and eV.
(3) What is this series?
(4) Calculate the longest wavelength in the series?
Chapter 9 Solutions
MODERN PHYSICS (LOOSELEAF)
Ch. 9 - Bond strengths are frequently given in units of...Ch. 9 - Consider hydrocarbon molecules with the formula...Ch. 9 - Calculate the Coulomb energy of KBr at the...Ch. 9 - Prob. 11PCh. 9 - Prob. 13PCh. 9 - Figure 9.32 shows the energy minimum of molecular...Ch. 9 - Prob. 22PCh. 9 - Prob. 24PCh. 9 - Prob. 27P
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