The half-life of a radioactive element is 160 days. After 800 day 1 g of the element will reduce to
The half-life of a radioactive element is 160 days. After 800 day 1 g of the element will reduce to
(a) 1/10 g
(b) 1/20 g
(c) 1/8 g
(d) 1/32 g
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Correct Option (d) 1/32 g
Explanation:
We know that amount left after n-half lives
= a(1/2)n
= 1(1/2)800/160
=1/32 g
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