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A radioactive material decays by simulta...

A radioactive material decays by simultaneous emission of two particle from the with respective half - lives `1620` and `810` year . The time , in year , after which one - fourth of the material remains is

A

4860 yr

B

3240 yr

C

2340 yr

D

1080 yr

Text Solution

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The correct Answer is:
D
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