Skip to content

Course home

Sign up

Particles

EasyMedium
12345678910111213141516171819202122
Question 20

A carbon-11 nucleus decays via β+\beta^+β+ decay into a boron-11 nucleus, emitting a positron and an unknown particle YYY:

611C→511B+β++Y ^{11}_{6}\text{C} \rightarrow ^{11}_{5}\text{B} + \beta^+ + Y 611​C→511​B+β++Y

What is the identity of particle YYY?

A

electron antineutrino

B

electron neutrino

C

neutron

D

gamma photon

Markscheme

Particles Questions

  1. A Level
  2. /Physics
  3. /Particles

50 exam-style questions on AQA A Level Physics Particles, covering Constituents of the atom, Stable and unstable nuclei, Particles, antiparticles and photons, Particle interactions, Classification of particles, Quarks and antiquarks, and Applications of conservation laws. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank