1.

In one mean lifetime of a radioactive element, the fraction of the nuclei that has disintegrated is [e is the base of natral logarithm.](A) \(\cfrac1e\)(B) 1 – \(\cfrac1e\)(C) e (D) e – 1.

Answer»

Correct option is (B) 1 – \(\cfrac1e\)



Discussion

No Comment Found