A sample of 19K40 disintegrates into two nuclei Ca and Ar with decay constant λca=4.5×10−10 s−1 and λAr=0.5×10−10 s−1 respectively. The time after which 99% of 19K40 get decayed is

A sample of 19K40 disintegrates into two nuclei Ca and Ar with decay c

1.	A sample of 19K40 disintegrates into two nuclei Ca and Ar with decay constant λca=4.5×10−10 s−1 and λAr=0.5×10−10 s−1 respectively. The time after which 99% of 19K40 get decayed is
Answer» A sample of $_{19} K^{40}$ disintegrates into two nuclei Ca and Ar with decay constant $λ_{c a} = 4.5 \times 10^{- 10} s^{- 1}$ and $λ_{A r} = 0.5 \times 10^{- 10} s^{- 1}$ respectively. The time after which $99 %$ of $_{19} K^{40}$ get decayed is

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A sample of 19K40 disintegrates into two nuclei Ca and Ar with decay constant λca=4.5×10−10 s−1 and λAr=0.5×10−10 s−1 respectively. The time after which 99% of 19K40 get decayed is

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