Definition of radioactivity: Radioactivity is the spontaneous emission of which radiations from unstable nuclei? State the complete set commonly observed. Choose the correct option.
General Knowledge
Biology
Difficulty: Easy
Choose an option
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AAlpha (α) particles only
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BBeta (β) particles only
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CGamma (γ) rays only
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DAlpha (α), beta (β), and gamma (γ) radiations
Answer
Correct Answer: Alpha (α), beta (β), and gamma (γ) radiations
Explanation
Concept / ApproachRadioactivity involves the spontaneous emission of α (helium nuclei), β (electrons/positrons), and γ (high-energy photons) from unstable atomic nuclei.
Final Answerα, β, and γ radiations.