NILES
Laser Engineering Applications
Spring 2011
EAL 501
1.
Date due 25 April 2012
Consider the absorption coefficient (f ) of a pure gas precisely at resonance. Show that
(f ) is proportional to the number density of atoms when the absorption line is Dop
Homework #1
Date due : 4/4/2012
1. prove that the absorbed photon wavelength due to the electron transition in
Hydrogen atom from level n , n' can be written as
(a) Transition from n'= 2 to and n= 3, 4, 5, . . . gives the Balmer series of the hydrogen
spe
PHY309 L.
Solutions for homework set # 11.
Textbook problem SP.2 at the end of chapter 18:
Preliminaries: An electron in a hydrogen atom has a positive kinetic energy
1
Ekin = + 2 mv 2
but a negative potential energy
Epot =
ke e2
.
r
If the net energy
En
P30 Q10 0304
Answers at back
Physics 30 Quiz #10
Name:_
1. Electrons with a speed of 1.65 x 107 m/s strike the target of an x-ray tube. What is
the maximum frequency of the x-rays produced?
2. a) What is the wavelength of the series limit (shortest wavele
Homework #1
Date due : 4/4/2012
1. prove that the absorbed photon wavelength due to the electron transition in
Hydrogen atom from level n , n' can be written as
(a) Transition from n'= 2 to and n= 3, 4, 5, . . . gives the Balmer series of the hydrogen
spe