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PhysicsModern PhysicsRadioactivityMedium2 minQB

PhysicsMediumsingle choice

A sample of radio-nuclide contains $1 0^{18}$ atoms. The half life of the material is 2.0 days, then the activity of a sample is

Answer:

Solution:

$A = λ N = \frac{ln 2}{2.0 \times 86400 s} \times 1 0^{18}$

$\approx 4 \times 1 0^{12} Bq$

Hence option (D).

Stream:JEESubject:PhysicsTopic:Modern PhysicsSubtopic:Radioactivity

⏱ 2mℹ️ Source: QB

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