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MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Department of Physics
Physics 8.04 March 8, 1997
8.04 Quiz I, Spring 1996
Instructions
- Closed book; no notes.
- Please start solutions on the same page on which the problem is given.
- Use subsequent blank pages if necessary
NAME:
Recitation Instructor:
8.04 Formula Sheet: Quiz I
Physical Constants
Heisenberg Uncertainty Principle
Bohr-Sommerfeld Quantization Condition
Names Associated with Experiments
For your reference for the purposes of answering Problem
2.1, below (in alphabetical order) are the names
associated with of most of the experiments discussed in this course.
- Compton Scattering: Send high energy X-rays or Gamma-rays at a
target containing electrons and observe the frequency distribution of
the scattered light as a function of scattering angle.
- Davisson-Germer: Scatter electrons from a crystal surface and observe
the current received at different scattering angles as a function of
accelerating voltage of the electrons.
- Franck-Hertz: Send electrons through a dilute gas
of Mercury atoms and measure the current as a function of the
accelerating voltage.
- R.A. Millikan: Measure the static charges carried by tiny drops of
oil.
- Moseley Spectra/X-ray emission: Send high energy electrons at a
material target and observe the distribution of wavelengths of light
(X-rays) emitted as the electrons decelerate into the metal. Moseley
studied the detailed form of the X-ray emission as a function of the
element composing the target.
- Optical Spectra: Observe the pattern of radiation emitted by a
luminescent (excited) dilute gas of atoms.
- Photoelectric Effect: Shine light on metal surface and observe
the time delay and energy distribution of ejected electrons as a
function of the intensity and frequency of the light.
- Rutherford Scattering: Send nuclei at thin gold foil and measure
rate of scattering at different angles.
- G.I. Taylor: Interference experiments with a light so dim that
that only one photon passes through the apparatus at a time.
- G.P. Thomson: Send electrons and photons through a thin foil and
record the pattern of the scattered beams on photographic plates.
- J.J. Thomson: Measure the deflections of electrons passing
through E and B fields.
Quiz Problems:
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Prof. Tomas Alberto Arias
Sat Mar 8 16:29:07 EST 1997