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Q.

The half life period of Pb210 is 22 years. If 2g of Pb210 is taken, then after 11 years the amount of Pb210 will be present is

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a

0.707g

b

1.414g

c

2.828g

d

0.1414g

answer is B.

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The half life period of Pb210 is 22 years. If 2g of Pb210 is taken, then after 11 years the amount of Pb210 will be present is