Question:
Dimensional formula for activity of a radioactive substance is
Dimensional formula for activity of a radioactive substance is
Updated On: Jan 14, 2026
- \( \text{M}^{1} \text{L}^{0} \text{T}^{-1} \)
- \( \text{M}^{0} \text{L}^{1} \text{T}^{0} \)
- \( \text{M}^{0} \text{L}^{0} \text{T}^{-1} \)
- \( \text{M}^{1} \text{L}^{0} \text{T}^{-2} \)
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The Correct Option is C
Solution and Explanation
Activity is the rate of decay, and it is the number of decays per unit time.
Since it is inversely proportional to time, its dimensional formula is \(\text{T}^{-1}\), with no dependence on mass or length.
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