Flag Modern Physics> half life...
question mark

10 gms of 57 Cobalt kept in a container beta decays with a half life of 270 days. The wt. of the material inside the container after 540 days will be nearly?

pavan kumar PV , 14 Years ago
Grade 11
anser 1 Answers
vikas askiitian expert

Last Activity: 14 Years ago

W/Wi = (1/2)T/t                         (t = half life  &  T is time , Wi = 10gms)

after 540 days

W/Wi = (1/2)540/270 = (1/2)2 =1/4

 W = Wi /4 = 10/4 = 2.5grams

 approve my ans if u like

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments