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Standard XII
Physics
First Order Radioactive Decay
Question
Given a radioactive sample having half - life of 4 days. Find the probability, a nucleus disintegrates after 2 half lives.
A
$$\dfrac {31} {32}$$
B
$$\dfrac 1 {32}$$
C
$$\dfrac{3}{4}$$
D
$$\dfrac 4 5$$
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Solution
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Correct option is A. $$\dfrac{3}{4}$$
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