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प्रश्न
The half-life of 24Na is 900 minutes. What is its decay constant?
संख्यात्मक
उत्तर
Given: t1/2 = 900 minutes
To find: λ
Formula: `lambda = 0.693/"t"_(1//2)`
Calculation: `lambda = 0.693/"t"_(1//2) = 0.693/(900 min)`
λ = 7.7 × 10-4 min-1
Decay constant for 24Na is 7.7 × 10-4 min-1.
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Modes of Decay
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