Multiple choice

Gamma rays have-

  1. Zero mass and no change

  2. Zero mass and positive change

  3. Unit mass and Zero change

  4. Unit mass and negative change
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A Correct answer
Explanation

Gamma rays are a form of high-energy electromagnetic radiation consisting of photons. Unlike alpha particles (positive charge) or beta particles (negative charge), gamma rays have no rest mass and carry no electrical charge. This lack of charge and mass allows them to have high penetrating power through matter.

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