rhyanebean3304 rhyanebean3304
  • 09-01-2024
  • Physics
contestada

The radioactive sources A and B of half lives of 2 hr and 4 hr respectively, initially contain the same number of radioactive atoms. At the end of 2 hours, their rates of disintegration are in the ratio :
A. 4:1
B. 2:1
C. √2:1
D. 1:1

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