A mixture consists of two radioactive materials A₁ and A₂ with half-lives of 20 s and 10 s respectively. Initially, the mixture has 40 g of A₁ and 160 g of A₂. The amount of the two in the mixture will become equal after

60 s

80 s

20 s

40 s

Solution

40 s

For 40 g amount
$4 space straight g space rightwards arrow from half space minus life to 20 space straight s of 20 space straight g space rightwards arrow with 20 space straight s on top space 10 space straight g For space 160 space straight g space amount 160 space straight g space rightwards arrow with 10 space straight s on top space 80 space straight g space stack space rightwards arrow with 10 space straight s on top space 40 space straight g rightwards arrow with 10 space straight s on top space 20 space straight g space rightwards arrow with 10 space straight s on top space 10 space straight g$
So, after 40 A₁ and A₂ remains same.

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Wave Optics

A mixture consists of two radioactive materials A₁ and A₂ with half-lives of 20 s and 10 s respectively. Initially, the mixture has 40 g of A₁ and 160 g of A₂. The amount of the two in the mixture will become equal after

60 s

80 s

20 s

40 s

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Wave Optics

A mixture consists of two radioactive materials A1 and A2 with half-lives of 20 s and 10 s respectively. Initially, the mixture has 40 g of A1 and 160 g of A2. The amount of the two in the mixture will become equal after 60 s 80 s 20 s 40 s

Some More Questions From Wave Optics Chapter

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

A mixture consists of two radioactive materials A₁ and A₂ with half-lives of 20 s and 10 s respectively. Initially, the mixture has 40 g of A₁ and 160 g of A₂. The amount of the two in the mixture will become equal after

60 s

80 s

20 s

40 s