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A radioactive istope having a half-line ...

A radioactive istope having a half-line of `3` day was received after 12 day. It was found that there were `3 g` the istope when packed was:

A

`12g`

B

`24g`

C

`36g`

D

`48g`

Text Solution

Verified by Experts

The correct Answer is:
`(d)`
`n = (12)/(3) = 4`
`:. N_(0) = N xx 2^(n) = 3xx2^(4) = 48g`
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P BAHADUR-RADIO ACTIVITY-Exercies 3A
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  2. If 5g pf a radioactive substanc ehas t(1//2) = 12hr, 20g of the same s...

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  3. A radioactive istope having a half-line of 3 day was received after 12...

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  4. Radioactive material is deacign with t(1//2) = 30 days on being, separ...

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