1.

If the number of nuclei in a radioactive sample at a given time is N, what will be the number at the end of two half-lives?(A) \(\frac{N}2\)(B) \(\frac{N}4\)(C) \(\frac{3N}4\)(D) \(\frac{N}8\)

Answer»

Correct option is  (B) \(\frac{N}4\)



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