A powder contains 100mg of a radioactive material that emits α-particles. (See in detail)...? Mcqs

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A powder contains 100mg of a radioactive material that emits α-particles. (See in detail)...?

(A) 0mg

(B) 25mg

(C) 50mg

(D) 75mg

✅ Correct Answer: 25mg

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Source: This question is taken from the Everyday Science

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