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Standard XII

Physics

Standing Waves in Closed Organ Pipe

The radioacti...

Question

The radioactivity of a sample is R₁ at a time T₁ and R₂ at a time T₂. If the half-life of the specimen is T, the number of atoms that have disintegrated in the time (T₂-T₁) is proportional to:

(R₁T₁-R₂T₂)

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(R₁ - R₂ )

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(R₁ - R₂ )/T

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(R₁ - R₂ )T/0.693

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Solution

The correct option is D (R₁ - R₂ )T/0.693

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Similar questions

Q. The radioactivity of a sample is

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The radioactivity of a sample is R1 at a time T1 and R2 at a time T2. If the half-life of the specimen is T, the number of atoms that have disintegrated in the time (T2-T1) is proportional to:

The correct option is D (R1 - R2 )T/0.693

The radioactivity of a sample is R₁ at a time T₁ and R₂ at a time T₂. If the half-life of the specimen is T, the number of atoms that have disintegrated in the time (T₂-T₁) is proportional to:

The correct option is D (R₁ - R₂ )T/0.693