VITEEE 2018 Paper

Section: Physics

Question : 9 of 125

Marks: +1, -0

The activity of a radioactive sample is measured as 9750 counts per minute at t = 0 and as 975 counts per minute at t = 5 minutes. The decay constant is approximately

0.922 per minute
0.691 per minute
0.461 per minute
0.230 per minute

Validate

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