Mean life of a radioactive sample is $100$ $s$ . Find its half life in minutes

0.693

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

10^{- 4}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1.155

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $1.155$
$t_{a v}$ = $\frac{1}{λ}$ $100$ $s$
$t_{1 / 2}$ = $\frac{.693}{λ}$ = $69.3$ $s$

Half life in minutes $= \frac{69.3}{60} = 1.155$ min

Suggest Corrections

Similar questions

100

700 s^{- 1}

500 s^{- 1}

30

(Take ln 2 = 0.693 and ln 1.4 = 0.336)

Join BYJU'S Learning Program