Which of the following statement is not true for radioactive deca… - Vidyadip

MCQ

Which of the following statement is not true for radioactive decay ?

A
Amount of radioactive substance remained after three half lives is $\frac{1}{8}$ th of original amount.
B
Decay constant does not depend upon temperature.
✓
Decay constant increases with increase in temperature.
D
Half life is $\ln 2$ times of $\frac{1}{\text { rate constant }}$.

✓

Answer

Correct option: C.

Decay constant increases with increase in temperature.

(C) Decay constant increases with increase in temperature.
Sol. Decay constant is independent of temperature.

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