Selected MCQ

Current Question
Which particle is neutral?
  • A. Proton
  • B. Electron
  • C. Neutron
  • D. Positron
Correct Answer: C
Explanation:
Neutron has no charge.
Related Question 1
Which force acts on charged particles?
  • A. Gravitational
  • B. Magnetic
  • C. Electric
  • D. Nuclear
Correct Answer: C
Explanation:
Electric force acts on charges.
Related Question 2
Which particle experiences all four fundamental forces?
  • A. Electron
  • B. Proton
  • C. Neutrino
  • D. Photon
Correct Answer: B
Explanation:
Proton interacts via strong, weak, EM, and gravity.
Related Question 3
Which principle states particles are indistinguishable?
  • A. Pauli principle
  • B. Superposition principle
  • C. Indistinguishability principle
  • D. Correspondence principle
Correct Answer: C
Explanation:
Quantum particles of same type are identical.
Related Question 4
In quantum electrodynamics, the interaction between charged particles is mediated by:
  • A. Gluons
  • B. Photons
  • C. Gravitons
  • D. W bosons
Correct Answer: B
Explanation:
Electromagnetic interactions occur via exchange of virtual photons.
Related Question 5
The wavefunction of a particle must be continuous because:
  • A. It represents force
  • B. Its square gives probability density
  • C. It represents velocity
  • D. It defines temperature
Correct Answer: B
Explanation:
Discontinuity would imply undefined probability.