Disintegration constant for a radioactive substance is `0.58 hr^(-1)`. If half-life period

Options

A. 8.2 hr
B. 5.3 hr
C. 1.2 hrs
D. 2.4 hr

Answer

C

Explanation

`K = (0.693)/(t_(1//2)) implies t_(1//2) = (0.693)/(k) = (0.693)/(0.58) = 1.2 hr`