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Chapter 38: Q 3 (page 1114)
Electrons in a photoelectric-effect experiment emerge from an aluminum surface with a maximum kinetic energy of 1.30 eV. What is the wavelength of the light?
Wavelength of the light is 222.35 nm
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Starting from Equation 38.32, derive Equation 38.33
The charge on a muon-a subatomic particle is -e and its mass 207 times that of an electron-
which is confined in a 15-pm-long, one-dimensional box.
(1 pm = 1 picometer = 10-12 m.)
What is the wavelength, in nm, of the photon emitted in a quantum jump from n=2 to n=1
Consider a small virus having a diameter of 10 nm. The atoms of the intracellular fluid are confined within the virus. Suppose we model the virus as a 10-nm-long 鈥渂ox.鈥� What is the ground state energy (in eV) of a sodium ion confined in this box?
An FM radio station broadcasts with a power of 10 kW at a frequency of 101 MHz.
a. How many photons does the antenna emit each second?
b. Should the broadcast be treated as an electromagnetic wave or discrete photons? Explain.
17. What is the de Broglie wavelength of a neutron that has fallen in a vacuum chamber, starting from rest?
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