02.01 In a Rutherfordscattering experiment protons with Ep1 MeV bombard a foil that contains atoms o

1

• 02.01 In a Rutherford-scattering experiment
  protons with Ep1 MeV bombard a foil that
  contains atoms of Carbon, Oxygen, and Au. The
  energy of the elastically scattered protons are
  observed in a detector at 90 degrees with respect
  to the beam. Which of the following are correct
  regarding the energies of the protons
  corresponding to scattering on C, O, and Au as
  measured on the detector?

• Ep(C) ltEp(O) ltEp(Au)
• Ep(C) Ep(O) Ep(Au)
• C. Ep(C) gtEp(O) gtEp(Au)
• D. None of the above.

2

• 02.01
• In the previous experiment how many protons
  should be detected per second if one uses a beam
  of 1 microAmp on a 10-7 m thick foil (assume all
  made of carbon) and the detector has an area of 1
  cm2 and is located at 10 cm from the foil?

• 1e-8
• 1e-4
• C. 1
• 1e4
• 1e8.

3

• 02.03
• The graphs show sketches of determinations of the
  electric form factor versus the magnitude of the
  momentum transfer on objects with internal charge
  distribution. Which of the following statements
  is true?

• Charge distrib. in A is narrower than in B
• Charge distrib. in A is broader than in B
• C. Charge distrib. in A and B are identical