Which one of the following radiations possesses maximum velocity?
Correct answer: C. Gamma-rays
- A. Alpha-rays
- B. Beta-rays
- C. Gamma-rays
- D. All of the above have the same speed
Explanation
Gamma rays, being electromagnetic waves, travel at the speed of light. Alpha and beta particles, being particles with mass, have much lower velocities than the speed of light.
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