wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The activity of a radioactive sample falls from 800 decays per second to 200 decays per second in 15 minutes. Mean life of sample is

A
11 min
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
12 min
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
7.5 min
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
22 min
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Join BYJU'S Learning Program
CrossIcon