If 4 gm of a radioisotope has a half life period of 10 days, the half life of 2 gm of the same isotope will be ____________ days?
Correct answer: B. 10
- A. 5
- B. 10
- C. 20
- D. 30
Explanation
Half-life is an intrinsic property of a radioactive isotope and does not depend on the amount present. Thus, both 4 g and 2 g samples have a half-life of 10 days.
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