WBCS.LIVE practice question

Which of the following types of radioactive radiation has the highest penetrating power?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Alpha rays
  2. Beta rays
  3. Gamma rays
  4. Cathode rays

Correct answer and explanation

Correct answer: Gamma rays

Explanation: āœ… Correct Answer: C) Gamma rays šŸ“š Explanation: Gamma rays are high-energy electromagnetic waves that lack mass and electric charge, allowing them to pass through most materials easily. They can only be effectively blocked by thick layers of lead or several meters of concrete. In contrast, alpha particles have the lowest penetrating power and can be stopped by a single sheet of paper.