A radioactive element has half-life peri...

A radioactive element has half-life period of 30 days. How much of it will be left after 90 days?

A

`1/8`

B

`1/4`

C

`1/2`

D

`1/6`

Verified by Experts

The correct Answer is:

A

`N = N_0 //2^n therefore N = N_0//2^3 = N_0 //8`

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