Alpha, Beta, and Gamma radiations are emitted from a radioactive substance:
Correct answer: D. Spontaneously.
- A. When it is heated.
- B. When it is subjected to high pressure.
- C. When it interacts with another particle.
- D. Spontaneously.
Explanation
The Alpha, Beta, and Gamma radiations are emitted from radioactive substances spontaneously i.e the process is random. External factors such as heat, pressure or interactions with other particles do not have any influence on radiation , it is only a spontaneous process.
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