Question

Sample of carbon obtained from any

living organism has a decay rate of 15.3

decays per gram per minute. A sample of

carbon obtained from very old charcoal

shows a disintegration rate of 12.3

disintegrations per gram per minute.

Determine the age of the old sample

given the decay constant of carbon to be

3.839 × 10-12 per second.​

Answer 1

Answer:

Explanation:Given A0=15.3,A=12.3,

t12=5730year

λ=0.6931t12=0.69315730yr_1

Let the time passed be t,

WeknowA=A0.69910e2780×t Brgt ⇒∈123153=−069315730t)

⇒t=1804.3×t .\

Answer 2

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