During a deacay of 952gm .(92)U^(238) "t...

During a deacay of 952gm `._(92)U^(238) "to" ._(82)Pb^(206) `, total ``18xx10^(24) alpha-"particle"` are emitted , number of half lives completed in this decay are:

A

5

B

4

C

3

D

6

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The correct Answer is:

B

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