Exam-style question
Try this first
Which of the following statements correctly describes the role of the photon in electromagnetic interactions?.
- A.It carries the strong force between quarks.
- B.It mediates the electromagnetic force between charged particles.
- C.It is responsible for weak nuclear interactions.
- D.It is a constituent of baryons.
Model answer
What a good answer should say
- It mediates the electromagnetic force between charged particles.
Explanation
Why this works
Photons are the force carriers for electromagnetic interactions, allowing charged particles to exert forces on each other.
Common mistake
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