NEET Physics Nuclei Questions Solved

Watch Physics > Nuclei Videos
play button

The half life of polonium is 140 days. After how many days, 16 gm polonium will be reduced to 1 gm (or 15g will decay) 
(a) 700 days            (b) 280 days
(c) 560 days            (d) 420 days

(c) NN0=12t/140116=12t/140

t140=4t= 560 days

Difficulty Level:

  • 10%
  • 10%
  • 80%
  • 0%
Crack NEET with Online Course - Free Trial (Offer Valid Till September 21, 2019)