Question

What are the units and dimensions of the disintegration constant?

Answer 1

➤ Answer :-

⟶ s-1

• The decay constant l is the probability that a nucleus will decay per second so its unit is s-1.
• Decay is exponential in time following the formula A*exp(-kt).
• Since the value in paranthsis is pure number, it follows that has dimension of 1/t.