IB Physics HL E.3.18 Beta spectrum and neutrino Question Bank
Practise IB Physics HL E.3.18 by applying beta spectrum and neutrino concepts to exam-style physics questions.
- Syllabus
- First assessment 2025
- Course
- Physics HL
- Level
- HL
Exam points
- identify the relevant physical quantity, model or diagram
- apply the correct equation and units to the evidence
- justify the result using conservation laws, fields or energy relationships
E.3.18 (HL)—Beta spectrum and neutrino question 1
[Maximum number: 2]
This question is in two parts.
The alpha particles and gamma rays produced in radioactive decay have discrete energy spectra. This suggests that nuclei also possess discrete energy levels. However, beta particles produced in radioactive decay have continuous energy spectra. Describe how the existence of the antineutrino accounts for the continuous nature of beta spectra.
the total emitted energy is shared between the electron and the antineutrino; the energy/velocity can be shared/distributed in an infinite number of ways / OWTTE;
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