JEE Mains 26-July-2022 Shift 1 Solved Paper

Section: Physics

Question : 33 of 90

Marks: +1, -0

The disintegration rate of a certain radioactive sample at any instant is 4250 disintegrations per minute. 10 minutes later, the rate becomes 2250 disintegrations per minute. The approximate decay constant is :
(Take log101.88=0.274)

[26-Jul-2022-Shift-1]

0.02min−1
2.7min−1
0.063min−1
6.3min−1

Validate

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