Learn half life measurement MCQs in physics quiz for test prep. Atomic and nuclear physics quiz questions has multiple choice questions (MCQ), half life measurement test 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 × 104 years, 1.44 × 104 years, 1.72 × 104 years and 2.58 × 104 years problem solving for competitive exam, viva prep, interview questions worksheets. Free physics revision notes to practice half life measurement quiz with MCQs to find questions answers based online tests.

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?

1. 2.58 × 104 years
2. 1.44 × 104 years
3. 1.72 × 104 years
4. 2.58 × 104 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

1. 120 minutes
2. 90 minutes
3. 30 minutes
4. 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. 1⁄32
2. 1⁄16
3. 1⁄8
4. 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

1. 3 days
2. 10 days
3. 5 days
4. 7 days

C

MCQ. Radium-226 has a half-life of

1. 1160 years
2. 1340 years
3. 1580 years
4. 1620 years

D