Question

The time taken for a radioactive element to reduce to 50% of its original weight is __________ years if its half-life period is 12 years.

a.

24

b.

6

c.

18

d.

48

Answer: (c).18

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Q. The time taken for a radioactive element to reduce to 50% of its original weight is __________ years if its half-life period is 12 years.

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