Which of following is a correct statement?
Correct answer: D. β-rays are same as cathode rays.
- A. Protons and neutrons have exactly same mass.
- B. Gamma rays are higher energy neutrons.
- C. α-particles are single ionized helium neutrons.
- D. β-rays are same as cathode rays.
Explanation
β-particles are the fast moving electrons (cathode rays) which come out of the nucleus of a radioactive element.
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