Two radioactive elements A and|MODERN PHYSICS|JEE-MAIN 2023

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JEE MAIN 2023

11-04-2023 S1

Question

Two radioactive elements A and B initially have same number of atoms. The half life of A is same as the average life of B. If $\lambda_{\mathrm{A}}$ and $\lambda_{\mathrm{B}}$ are decay constants of A and B respectively, then choose the correct relation from the given options.

Select the correct option:

A

$\lambda_A=\lambda_B$

B

$\lambda_{\mathrm{A}}=2 \lambda_{\mathrm{B}}$

C

$\lambda_{\mathrm{A}}=\lambda_{\mathrm{B}} \ln 2$

D

$\lambda_{\mathrm{A}} \ln 2=\lambda_{\mathrm{B}}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

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