Class 10 physics Practice Tests

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The e-Book *Half life measurement Multiple Choice Questions (MCQ Quiz) with answers*, half life measurement MCQs PDF download to study online 10th grade physics certificate courses. Practice Atomic and Nuclear Physics Multiple Choice Questions and Answers (MCQs), Half Life Measurement quiz answers PDF for distance learning. The *Half Life Measurement MCQ* App Download: Free learning app for background radiations, nuclear transmutations test prep for online certificate courses.

The 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 and 2.58 × 10^{4} years with "Half Life Measurement" App Download (Free) for distance learning. Solve atomic and nuclear physics quiz questions, download Google eBook (Free Sample) for online certifications.

**MCQ 1**: 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?

A) 2.58 × 10^{4} years

B) 1.44 × 10^{4} years

C) 1.72 × 10^{4} years

D) 2.58 × 10^{4} years

c

**MCQ 2**: 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

A) 120 minutes

B) 90 minutes

C) 30 minutes

D) 60 minutes

a

**MCQ 3**: 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?

A) 1 ⁄ 32

B) 1 ⁄ 16

C) 1 ⁄ 8

D) 1 ⁄ 4

b

**MCQ 4**: 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

A) 3 days

B) 10 days

C) 5 days

D) 7 days

c

**MCQ 5**: Radium-226 has a half-life of

A) 1160 years

B) 1340 years

C) 1580 years

D) 1620 years

d

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