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Chemical Kinetics and Nuclear Chemistry question

2007 · Shift 0 · Q24

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Chemistry
Chemical Kinetics and Nuclear Chemistry
2007 · Shift 0 · Q24

Chemical Kinetics and Nuclear Chemistry question

2007 · Shift 0 · Q24

JEE MainChemistryChemical Kinetics and Nuclear ChemistryMCQ+4 / −1

A radioactive element gets spilled over the floor of a room. Its half-life period is 30 days. If the initial activity is ten times the permissible value, after how many days will it be safe to enter the room?

A
1000 days
B
300 days
C
10 days
D
100 days

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