Physics, asked by kevalbhoir36, 10 months ago

If a radioactive material is dacayed by 20% in a
minute. Then its half life period will be :-​

Answers

Answered by nagathegenius
1

Answer:

Explanation:

use formula

nt/n0=1/2^n

where

n0 is initial

nt is how much it is decomposed at time t

n=t/t1/2

nt/n0=1/2^n

20/100 n0 /n0=1/2^1/t1/2

1/5=1/2^1/t1/2

5=2^1/t/2

log 5= 1/t1/2 log 2

0.6 = 1/ t1/2 (0.3)

1/2= 1/ t1/2

t1/2=2min

half life = 2min

Similar questions