A piece of wood collected from cro-Magno...

A piece of wood collected from cro-Magnon caves gave `4` disintergrations`//`min. A freshly cut wood of the same weight gives `16` d.pm. The cro-magnon man lived about ( Half life of `C^(14)` is `5760` years. Assume the activity is due to `C^(14)` only)

5700 years ago

2900 years ago

11520 years ago

1400 years ago

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The correct Answer is:

`t =2` half lifes

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NARAYNA-NUCLEI -EXERCISE-4

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