A-LevelPhysicsNuclear physicsMay/June 2014Paper 1 Q391 Mark

A slow-moving neutron collides with a nucleus of uranium-235. This results in a nuclear reaction that is represented by the following nuclear equation ²³⁵U + ¹n → ¹⁵⁴Nd + ⁸⁰Ge + x where x represents one or more particles. What does x represent?

Q: What is the correct answer to this A-Level Physics question?

The correct answer is C: two neutrons.

Q: What topic does this question test?

This question tests Nuclear physics in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Aone neutron

Btwo electrons

Ctwo neutrons

Dtwo protons

✓ Correct Answer

The correct answer is C: two neutrons

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Physics Question

Topic

This multiple-choice question tests Nuclear physics in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics May/June 2014 examination, Paper 1 Variant 2.

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