Physics, asked by nasir8228, 2 months ago

half life of a sample of radium is 22 years. The sample will reduce to 25% after how many years
A. 11
B. 44
C. 22
D. 8

Answers

Answered by KopperSulphate

1

Is it 11... I’m not sure as half of it takes 22 years then a quarter should take 11 right?

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