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At certain time, the activity of three r...

At certain time, the activity of three radioactive materials are in the ratio of 3 : 4 : 5 . What will be the mark ratio of their activities at any further date?

A

`1 : 2 :3`

B

`2:3:4`

C

`3:4:5`

D

`5:6:8`

Text Solution

Verified by Experts

The correct Answer is:
C
Activity = `|-(dN)/(dt)|` = `Nlambda`
`therefore` Activity does not depend upon the time .
Hence, the ratio of their activities will be `3 : 4 : 5`.
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