Question

114 Nuclei
SECTION - B
Previous Years Questions
1. The rate of radioactive disintegration at an instant
for a radioactive sample of half life 2.2 x 10° s is
1010 s-1. The number of radioactive atoms in that
sample at that instant is [NEET-2019 (Odisha)]
(1) 3.17 * 1019 . (2) 3.17 x 1020
(3) 3.17 * 1017 (4) 3.17 ~ 1018
d-particle consists of:
[NEET-2019]
(1) 2 protons and 2 neutrons only​

Answer 1

Answer:

N=RATE/

Explanation:

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