# Half Life Measurement MCQs Quiz and Answers Tests pdf Download

Practice half life measurement MCQs in physics quiz for test prep. Atomic and nuclear physics quiz questions has multiple choice questions (MCQ) with half life measurement test, answers as if a c-14 has a half life of 5730 years, then how long will it take for quantity of c-14 in a sample to drop to 1/8 of initial quantity, answer key with choices as 2.58 × 10^{4} years, 1.44 × 10^{4} years, 1.72 × 10^{4} years and 2.58 × 10^{4} years for competitive exam preparation worksheets. Free physics revision notes to learn half life measurement quiz with MCQs to find questions answers based online tests.

## MCQs on Half Life Measurement Quiz pdf Download

MCQ. If a C-14 has a half life of 5730 years, then how long will it take for quantity of C-14 in a sample to drop to 1/8 of initial quantity?

- 2.58 × 10
^{4}years - 1.44 × 10
^{4}years - 1.72 × 10
^{4}years - 2.58 × 10
^{4}years

C

MCQ. If a radioactive element has a half-life of 40 minutes. initial count rate was 1000 per minute, then how long will it take for count rate to drop to 125 per minutes

- 120 minutes
- 90 minutes
- 30 minutes
- 60 minutes

A

MCQ. What fraction of original sample will be after 22 years, if Cobalt-50 is a radioactive element with half-life of 4.3 years?

- 1⁄32
- 1⁄16
- 1⁄8
- 1⁄4

B

MCQ. If activity of a sample of radioactive bismuth decreases to 1/8 of its original activity in 15 days, then sample's half life will be

- 3 days
- 10 days
- 5 days
- 7 days

C

MCQ. Radium-226 has a half-life of

- 1160 years
- 1340 years
- 1580 years
- 1620 years

D