Flag Modern Physics> Radioactive nuclei has10 ^8,its half life...
question mark

Radioactive nuclei has10 ^8,its half life is 30s the number of nuclei left after 15s is

Suraj Mishra , 8 Years ago
Grade 11
anser 1 Answers
Vikas TU

Last Activity: 7 Years ago

Dear Student,
0.693/t1/2 =  
t1/2= half life 
=disintegration or rot consistent 
=>0.693/30 =  
=>=0.0231 
=2.303log(a/a-x)/t 
a=initial sum 
a-x= sum left after deterioration 
t=time of rot 
=>0.0231=2.303log(108/108-x)/15 
=>108/108-x=1.41 
=>Amount left=108-x=7,09,21,986 nuclei.
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)

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