The half-life of radioactive radon is 3.8 days. The time at the end of which l/20th of the Radon sample will remain undecayed will be:

The half-life of radioactive radon is 3.8 days. The time at the end of

1.	The half-life of radioactive radon is 3.8 days. The time at the end of which l/20th of the Radon sample will remain undecayed will be:
A.	3.8 days
B.	16.5 days
C.	33 days
D.	76 days
Answer» C. 33 days

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The half-life of radioactive radon is 3.8 days. The time at the end of which l/20th of the Radon sample will remain undecayed will be:

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