Test Index

JAMB Physics 2023 Paper

Question : 9

Total: 65

Solution:

Concept:

The decay constant

\lambda

is related to half-life

T_{1/2}

\lambda = \frac{0.693}{T_{1/2}}

Explanation:

The half-life is given as

T_{1/2} = 12

days.

Use the formula for decay constant:

\lambda = \frac{0.693}{T_{1/2}}

Substitute the half-life value:

\lambda = \frac{0.693}{12}

Calculate the result:

\lambda = 0.05775 \, \text{day}^{-1}

Answer:

\lambda = 0.05775 \, \text{day}^{-1}

The correct option is D.

Go to Question:

Prev Question

Next Question