Q14 · 2023 · Paper 1Simple familiar1 mark
QUESTION 14
An electron is best described as a
(A)
lepton with a larger mass than a positron.
(B)
baryon with a smaller mass than a proton.
(C)
meson that experiences the strong nuclear force.
(D)
particle whose interactions can be mediated by photons.
WORKED SOLUTION
1 markAnswer D
ANSWER
D
Worked solution
An electron is a lepton. Its electromagnetic interactions are mediated by photons. Option D.
Selects option D.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.