NEET Physics Nuclei Questions Solved


Half life of a radioactive element is 10 days. The time during which quantity remains 1/10 of initial mass will be
(a) 100 days             (b) 50 days
(c) 33 days               (d) 16 days

(c) After three half lives (i.e., 30 days) it remains 123=18 so it will remain 110th, approximately in 33 days

Difficulty Level:

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