Q. Consider the following statements regarding Alpha, Beta, and Gamma radiations:
  1. Alpha particles exhibit the highest ionizing power but the lowest penetrating ability among the three.
  2. Gamma rays possess the greatest penetration power but the lowest ionizing ability.
Which of the above statements is/are correct?

Answer: Both 1 and 2
Notes: Alpha particles, being heavy and doubly charged, easily ionize surrounding matter but can be stopped by a sheet of paper or a few centimeters of air. Gamma rays, as electromagnetic waves, penetrate several centimeters of lead yet interact minimally with matter, hence have the lowest ionizing power. Thus, both statements are correct as per radiation physics.
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