The count rate of a radioactive sample w...

The count rate of a radioactive sample was 1600 count/s at t=0 and 100 counts at t=8 s . Select the correct alternatives

its count rate was `400 count/s` at t = 2s

Half life of the sample is 2.88 s

Mean life of the sample is 4 s

Its count rate was 200 count/s at t = 6 s

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AAKASH INSTITUTE-TEST 9-EXAMPLE

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