Find the distance of closest approach of an 8.0-MeV alpha particle incident on a gold foil.
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- 3. a) Alpha particles of the same initial speed are shot at the same intensity toward gold, silver, and aluminum foils of the same thickness. They are observed at a detector at a fixed scattering angle, 0 0°. What would the ratios of the number of alpha particles scattered by the gold and silver foils to the aluminum foil, No Au 13). NaAl and respectively, be? (ZAu = 79, ZAg = 47, ZAI Na Ag NaAl b) Compare the number of a particles of fixed kinetic energy scattered through an angle of 10° (call this Na(10°)) with the number scattered through an angle of 20° (Na (20°)) for Rutherford scattering by a thin gold foil of fixed thickness. Compute Na (10⁰) Na (20°). p2 Rutherford's scattering model assumes that the alpha particles experience a Coulomb repulsion, F = KqZe from the nucleus of the foil's atom. If, in a head-on collision the alpha particle has enough energy to get inside a uniformly charged Kqa Zer nucleus of radius R, the force law would change to F = R³ " point-nucleus…Now the energy of a neutrino is measured at a specific time. If the uncertainty in the time measurement is 2.31 x 10-24 seconds, what is the minimum uncertainty in the energy?The speed of the alpha particles in Rutherford experiment was 0.01c, the scattering material was gold. What was the impact parameter of the alpha particle scattered by 60°?
- https://www.compadre.org/PQP/quantum-need/prob4_5.cfm *Link to HW problemAlpha particles with energy 4.25 MeV interact with gas molecules in ion – chamber and produced 300 particles /second. If the particles lose all its energy in the ion – chamber, the ionization energy is 35 eV, what is the current produced by these particles? Find the resistance that must be connected in series with the ion chamber for the voltage difference to be 0.1 and 1 V?