Q. Which of the following statements are correct regarding the observations from Rutherford's gold foil experiment?
  1. Most of the fast moving D-particles passed straight through the gold foil.
  2. Some of the D-particles were deflected by the foil by small angles.
  3. One out of every 1200 particles appeared to rebound.
Select the correct answer from the codes given below:

Answer: Only 1 & 2
Notes: In Rutherford's experiment, most alpha particles (D-particles) passed straight through gold foil and some were deflected at small angles. Very few—about one in 12,000—not 1 in 1200—were rebounded. Hence, statements 1 and 2 are correct, but statement 3 is factually incorrect regarding the rebound ratio.
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