Q154 · Practice questionSimple familiar1 mark
QUESTION 154
Which Standard Model interaction is experienced by an electron neutrino, but an electromagnetic interaction is not?
(A)
The strong interaction, mediated by gluons
(B)
The electromagnetic interaction, mediated by photons
(C)
The weak interaction, mediated by W or Z bosons
(D)
A strong interaction mediated by a photon
WORKED SOLUTION
1 markAnswer C
ANSWER
C. The weak interaction, mediated by W or Z bosons
Worked solution
A neutrino is an electrically neutral lepton. It participates in the weak interaction, but has neither electric charge for electromagnetic coupling nor colour charge for the strong interaction.
Equivalent physically justified methods and consistent equivalent units accepted.
Displayed decimals are model answers; accept appropriate significant figures and consistent rounding from stated constants.
Select C.
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