Question:

\( [L^0 M^0 T^{-1}] \) is the dimensional formula for

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Activity of radioactive substance has dimension of frequency.
Updated On: Apr 21, 2026
  • angular velocity
  • activity of radioactive substance
  • time period of oscillation
  • half life period of a radioactive substance
  • impulse of the force
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The Correct Option is B

Solution and Explanation

Concept: \[ \text{Dimension of activity} = \text{decay per unit time} \]

Step 1:
Dimensional analysis.
\[ \text{Activity} = \frac{1}{\text{time}} \Rightarrow [T^{-1}] \] \[ \Rightarrow [L^0 M^0 T^{-1}] \]
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