Question

- Initial decay rate of a substance is 800 disintegration/
sec. If half life of substance is 1 sec. then after three
second the decay rate will be :-
(1) 800 disintegration/sec.
(2) 400 disintegration/sec.
(3) 200 disintegration/sec.
(4) 100 disintegration/sec.
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Answer 1

Explanation:

option d is the answer for clear explanation refer pic....

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Answer 2

Answer:

This will help you

Explanation:

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