MASTERINGPHYSICS W/ETEXT ACCESS CODE 6
13th Edition
ISBN: 9781269542661
Author: YOUNG
Publisher: PEARSON C
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Chapter 39, Problem 39.8DQ
To determine
The method by which the energy levels of the atom can be measured directly.
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How might the energy levels of an atom be measured directly— that is, without recourse to analysis of spectra?
3:09 O O O 63° A X •
N N O 5G „ll
Quizzes
a
(absorption)
Brackett
series
Paschen
series
Lyman
series
(emission)
Balmer series
Paschen
series
(emission)
n= 2
n=3
n=4
....
Lyman series
n-5
(a)
(b)
e These pictures refer to the energy levels
of a hydrogen atom.
You can find the error in both parts, (a) and
(b). The arrows labeled "emission" in (a), and
all the arrows in (b), indicate a transition in
which an electron jumps from a higher-
energy state to a lower-energy state. The
different "series" of emission lines are
characterized by the index n of the low-
energy state in which the electron ends up.
In particular, the Lyman series consists of all
transitions that end up in the n=1 energy
level, with an initial energy level that
corresponds to the label n = 2, 3, 4, 5, etc.
One of these values of n is not shown as an
arrow in the Lyman emission series in figures
(a) or (b). This is a significant error because
that particular spectral line is very important
in astronomy.
Pick the value…
5. (a) By considering the case where an atom is enclosed within a cavity containing black body
radiation at temperature T, show that the Einstein A and B coefficients are related to each
other through the following relationships:
9,B12 = 92B21,
8nhv³
- B21,
A21
where g, and g, are the degeneracies of the two levels respectively. The spectral energy
density of black body radiation is given by
8thv³
u(v)
c exp(hv/kgT) –1
1
where kg is Boltzmann's constant.
(b) Explain why the effective temperature of the laser levels must be negative in order for a
laser to oscillate.
(c) The degeneracies of the upper and lower levels of the 488.0 nm line of the argon ion laser
are 6 and 4, respectively. Deduce the effective temperature of the laser levels when the
population of the upper level is twice that of the lower level.
(d) Describe how population inversion is achieved in a semiconductor laser diode.
(e) A certain semiconductor laser diode has a length of 0.5 mm and has a high reflection
coating…
Chapter 39 Solutions
MASTERINGPHYSICS W/ETEXT ACCESS CODE 6
Ch. 39.2 - Prob. 39.2TYUCh. 39.3 - Prob. 39.3TYUCh. 39.4 - Prob. 39.4TYUCh. 39.5 - Prob. 39.5TYUCh. 39.6 - Prob. 39.6TYUCh. 39 - Prob. 39.1DQCh. 39 - Prob. 39.2DQCh. 39 - Prob. 39.3DQCh. 39 - When an electron beam goes through a very small...Ch. 39 - Prob. 39.5DQ
Ch. 39 - Prob. 39.6DQCh. 39 - Prob. 39.7DQCh. 39 - Prob. 39.8DQCh. 39 - Prob. 39.9DQCh. 39 - Prob. 39.10DQCh. 39 - Prob. 39.11DQCh. 39 - Prob. 39.12DQCh. 39 - Prob. 39.13DQCh. 39 - Prob. 39.14DQCh. 39 - Prob. 39.15DQCh. 39 - Prob. 39.16DQCh. 39 - Prob. 39.17DQCh. 39 - Prob. 39.18DQCh. 39 - Prob. 39.19DQCh. 39 - Prob. 39.20DQCh. 39 - Prob. 39.21DQCh. 39 - When you check the air pressure in a tire, a...Ch. 39 - Prob. 39.1ECh. 39 - Prob. 39.2ECh. 39 - Prob. 39.3ECh. 39 - Prob. 39.4ECh. 39 - Prob. 39.5ECh. 39 - Prob. 39.6ECh. 39 - Prob. 39.7ECh. 39 - Prob. 39.8ECh. 39 - Prob. 39.9ECh. 39 - Prob. 39.10ECh. 39 - Prob. 39.11ECh. 39 - Prob. 39.12ECh. 39 - Prob. 39.13ECh. 39 - Prob. 39.14ECh. 39 - Prob. 39.15ECh. 39 - Prob. 39.16ECh. 39 - Prob. 39.17ECh. 39 - Prob. 39.18ECh. 39 - Prob. 39.19ECh. 39 - Prob. 39.20ECh. 39 - Prob. 39.21ECh. 39 - Prob. 39.22ECh. 39 - Prob. 39.23ECh. 39 - Prob. 39.24ECh. 39 - Prob. 39.25ECh. 39 - Prob. 39.26ECh. 39 - Prob. 39.27ECh. 39 - Prob. 39.28ECh. 39 - Prob. 39.29ECh. 39 - Prob. 39.30ECh. 39 - Prob. 39.31ECh. 39 - Prob. 39.32ECh. 39 - Prob. 39.33ECh. 39 - Prob. 39.34ECh. 39 - Prob. 39.35ECh. 39 - Prob. 39.36ECh. 39 - Prob. 39.37ECh. 39 - Prob. 39.38ECh. 39 - Prob. 39.39ECh. 39 - Prob. 39.40ECh. 39 - Prob. 39.41ECh. 39 - Prob. 39.42ECh. 39 - Prob. 39.43ECh. 39 - Prob. 39.44ECh. 39 - Prob. 39.45ECh. 39 - Prob. 39.46ECh. 39 - Prob. 39.47ECh. 39 - Prob. 39.48ECh. 39 - Prob. 39.49ECh. 39 - Prob. 39.50PCh. 39 - Prob. 39.51PCh. 39 - Prob. 39.52PCh. 39 - Prob. 39.53PCh. 39 - Prob. 39.54PCh. 39 - Prob. 39.55PCh. 39 - Prob. 39.56PCh. 39 - Prob. 39.57PCh. 39 - Prob. 39.58PCh. 39 - Prob. 39.59PCh. 39 - An Ideal Blackbody. A large cavity that has a very...Ch. 39 - Prob. 39.61PCh. 39 - Prob. 39.62PCh. 39 - Prob. 39.63PCh. 39 - Prob. 39.64PCh. 39 - Prob. 39.65PCh. 39 - Prob. 39.66PCh. 39 - Prob. 39.67PCh. 39 - Prob. 39.68PCh. 39 - Prob. 39.69PCh. 39 - Prob. 39.70PCh. 39 - Prob. 39.71PCh. 39 - Prob. 39.72PCh. 39 - Prob. 39.73PCh. 39 - Prob. 39.74PCh. 39 - Prob. 39.75PCh. 39 - Prob. 39.76PCh. 39 - Prob. 39.77PCh. 39 - Prob. 39.78PCh. 39 - Prob. 39.79PCh. 39 - Prob. 39.80PCh. 39 - A particle with mass m moves in a potential U(x) =...Ch. 39 - Prob. 39.82PCh. 39 - Prob. 39.83PCh. 39 - DATA In the crystallography lab where you work,...Ch. 39 - Prob. 39.85PCh. 39 - Prob. 39.86CPCh. 39 - Prob. 39.87CPCh. 39 - Prob. 39.88PPCh. 39 - Prob. 39.89PPCh. 39 - Prob. 39.90PPCh. 39 - Prob. 39.91PP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- The Balmer series for hydrogen was discovered before either the Lyman or the Paschen series. Why?arrow_forwardWhy are X-rays emitted only for electron transitions to inner shells? What type of photon is emitted for transitions between outer shells?arrow_forwardWhen the absorption spectrum of hydrogen at room temperature is analyzed, absorption lines for the Lyman series are found, but none are found for the Balmer series. What does this tell us about the energy state of most hydrogen atoms at room temperature?arrow_forward
- (a) If one subshell of an atom has 9 electrons in it, what is the minimum value of l ? (b) What is the spectroscopic notation for this atom, if this subshell is part of the n = 3shell?arrow_forwardGive only typing answer with explanation and conclusion using the Bohr model, determine the energy in joules of the photon produced when an electron in a He+ ion moves from the orbit with n=10 to the orbit with n = 5. (assume that the Bohr constant and radius are 2.179X10^-18J and 5.292X10^-11m)arrow_forwardQs: Determine the frequency of the wave length which emitted from an atom has an electron transited from( 3rd orbit and then from 2nd orbit to 1 orbit)? Note that the ground energy equal to (-13.6ev). (Ans. 5.45 x 1014HZ, 2.92 × 1015 Hz).arrow_forward
- 1. (a) Which "bold and daring" proposal did Bohr make to overcome the predictions of classical mechanics of an electron spiralling into the nucleus? (b) Explaining all the assumptions made and the terms used, show that the radius for the nth orbit of Bohr's model of the hydrogen atom is given by: h? r. = 47 kme? Show also, that the energy of the electron in the nth orbit is given by: me E, %3D 2. (i)What do you understand by Pauli's exclusion principle? (ii) Write down all possible combinations of the quantum numbers for electrons filling completely the p shell for n=2arrow_forwardThe shortest wavelength of the Lyman series of hydrogen is 91.13 nm. Find the three longest wavelengths in this series! Please Answer my question Im needed Max 30 minutes please.... Thank uarrow_forwardPlease don't provide handwritten solution ... An electron in the n = 4 level of an H atom emits a photon of wavelength 97 nm. To what energy level does the electron move?arrow_forward
- The energy levels of an electron in an atomic-like system are given by the expression En = -C/n^p C > 0, p > 0 n = 1,2,3... If the ionization energy for the electron in its ground state is 30 eV, and a photon of wavelength 50 nm is emitted when the electron makes a transition from the third level to the ground state, find C and p.arrow_forwardFind the ranges of wavelengths of the Lyman series (=R (-), 2,3,4, ....) and of the Balmer series (=R (-), n = 3,4,5, ....) in the n = emission spectrum of a 1 hydrogen atom. Do these ranges overlap?arrow_forward12. (a) Find the shortest vacuum-wavelength photon emitted by a downward electron transition in the Lyman series?arrow_forward
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