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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsRadioactivityMedium2 minQB

PhysicsMediumsingle choice

The radioactive sources A and B of half lives of 2 hr and 4 hr respectively, initially contain the same number of radioactive atoms. At the end of 2 hours, their rates of disintegration are in the ratio :

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Answer:

Solution:

$\frac{( N _{0} e ^{\frac{- l n 2}{2} \times 2} ) \frac{ℓ n 2}{2}}{( N _{0} e ^{\frac{- l n 2}{4} \times 2} ) \frac{ℓ n 2}{4}} = \frac{\frac{1}{2} \times 2}{\frac{1}{2}} = 2$ [MT-04_12th_14-12-13_Main]

Stream:JEESubject:PhysicsTopic:Modern PhysicsSubtopic:Radioactivity

⏱ 2mℹ️ Source: QB

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