# Half Life Measurement MCQ Questions Online PDF Download

Half life measurement MCQs, half life measurement quiz answers pdf to study high school physics for online degree courses. Learn atomic and nuclear physics Multiple Choice Questions and Answers (MCQs), "half life measurement" quiz questions and answers for distance learning. Learn nuclear transmutations, natural radioactivity, hazards of radiations, radioisotope and uses, half life measurement test prep for online certificate courses.

"If a C-14 has a half-life of 5730 years, then how long will it take for the number of C-14 in a sample to drop to 1/8 of initial quantity?" Multiple Choice Questions (MCQ) on temperature conversion with choices *2.58 × 10 ^{4} years, 1.44 × 10^{4} years, 1.72 × 10^{4} years, and 2.58 × 10^{4} years* for distance learning. Free physics student portal for online learning atomic and nuclear physics quiz questions for online certifications.

## MCQs on Half Life Measurement PDF Download

MCQ: If a C-14 has a half-life of 5730 years, then how long will it take for the number 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. The initial count rate was 1000 per minute, then how long will it take for the count rate to drop to 125 per minutes

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

A

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

- 1⁄32
- 1⁄16
- 1⁄8
- 1⁄4

B

MCQ: If the activity of a sample of radioactive bismuth decreases to 1/8 of its original activity in 15 days, then the 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