Grade 10 Physics MCQ

Grade 10 Physics Quiz Answers - Topic

Half life measurement Multiple Choice Questions (MCQ) to solve half life measurement quiz answers PDF worksheet, 10th grade physics test for online courses. Practice atomic and nuclear physics Multiple Choice Questions and Answers (MCQs), Half Life Measurement quiz questions PDF for distance learning. Half Life Measurement MCQs PDF: background radiations, nuclear transmutations 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 half life measurement 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. Solve atomic and nuclear physics quiz questions for online certificate programs for online certifications.

**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

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