AIEEE 2007 Solved Paper

Section: Chemistry

Question : 25 of 118

Marks: +1, -0

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?

[AIEEE 2007]

1000 days
300 days
10 days
100 days

Validate

Go to Question:

Prev Question

Next Question