Igcse Model Questions Vol1 2024 Physics Question 29

Practice objective / multiple choice question 29 from the 2024 Igcse Model Questions Vol1 Physics examination.

Igcse Model Questions Vol1 2024 Physics Objective / Multiple Choice Hard Difficulty

Question 29 IGCSE_MODEL_QUESTIONS_VOL1 • 2024 • PHYSICS • objective

A sample contains 2.0 g of pure \(^{226}\text{Ra}\). The half‑life of \(^{226}\text{Ra}\) is 1600 years and each decay releases an alpha particle with kinetic energy 4.87 MeV. (a) Calculate the activity of the sample in becquerels (Bq). (b) Determine the total energy released (in joules) after 5000 years.

Answer Options

A. 8.1×10^10 Bq, 2.9×10^9 J

Correct Answer B. 7.3×10^10 Bq, 3.7×10^9 J

C. 5.9×10^10 Bq, 3.0×10^9 J

D. 6.5×10^10 Bq, 4.2×10^9 J

Correct Answer

Correct Option:

7.3×10^10 Bq, 3.7×10^9 J

About This Question

This is Igcse Model Questions Vol1 2024 Physics Question 29. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Physics examination.

Difficulty level: Hard .

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