Particle Physics MCQs are very important test and often asked by various testing services and competitive exams around the world. Here you will find all the Important Particle Physics MCQs for Preparation.
The student can clear their concepts for Particle Physics online quiz by attempting it. Doing MCQs based Particle Physics will help you to check your understanding and identify areas of improvement.
Particle Physics Online MCQs with Answers
The fundamental particles of matter are classified into two main types:
a) Fermions and bosons
b) Protons and neutrons
c) Quarks and leptons
d) Electrons and positrons
The exchange particles responsible for the electromagnetic force are called:
a) Photons
b) Gluons
c) W bosons
d) Z bosons
The exchange particles responsible for the strong nuclear force are called:
a) Photons
b) Gluons
c) W bosons
d) Z bosons
The exchange particles responsible for the weak nuclear force are called:
a) Photons
b) Gluons
c) W bosons
d) Z bosons
The exchange particles responsible for the weak nuclear force are also associated with:
a) Electromagnetism
b) Gravitation
c) Strong nuclear force
d) Higgs mechanism
The Higgs boson is associated with the mechanism that gives particles:
a) Mass
b) Charge
c) Spin
d) Color
Quarks are elementary particles that are:
a) Always found in isolation
b) Always found in pairs
c) Always found in triplets
d) Always found in quark-gluon plasma
Leptons are elementary particles that include:
a) Protons and neutrons
b) Electrons and positrons
c) Photons and gluons
d) W bosons and Z bosons
The fundamental particles that make up protons and neutrons are called:
a) Quarks
b) Leptons
c) Antiparticles
d) Mesons
The number of quark flavors in the standard model of particle physics is:
a) 2
b) 3
c) 6
d) 12
The electric charge of an electron is:
a) Positive
b) Negative
c) Zero
d) Variable
The electric charge of a proton is:
a) Positive
b) Negative
c) Zero
d) Variable
The force responsible for holding atomic nuclei together is the:
a) Electromagnetic force
b) Strong nuclear force
c) Weak nuclear force
d) Gravitational force
The theory that unifies the electromagnetic and weak nuclear forces is called:
a) Quantum electrodynamics (QED)
b) Quantum chromodynamics (QCD)
c) Electroweak theory
d) Grand Unified Theory (GUT)
The force responsible for the attraction between objects with mass is the:
a) Electromagnetic force
b) Strong nuclear force
c) Weak nuclear force
d) Gravitational force
The particle associated with the gravitational force is the:
a) Photon
b) Gluon
c) Graviton
d) Higgs boson
The principle of particle physics that states that particles cannot be created or destroyed, but only transformed from one type to another, is called:
a) Conservation of energy
b) Conservation of mass
c) Conservation of momentum
d) Conservation of particle number
The phenomenon in which particles can be in multiple states or positions simultaneously is called:
a) Entanglement
b) Superposition
c) Wave-particle duality
d) Tunneling
The phenomenon in which particles become linked and their properties become correlated is called:
a) Entanglement
b) Superposition
c) Wave-particle duality
d) Tunneling
The concept in quantum mechanics that describes the indeterminate nature of particles until they are observed is called:
a) Uncertainty principle
b) Exclusion principle
c) Pauli principle
d) Superposition principle
The particle associated with the weak nuclear force and responsible for radioactive beta decay is the:
a) Neutrino
b) Antineutrino
c) Neutron
d) Proton
The particle associated with the weak nuclear force and responsible for capturing an electron in electron capture decay is the:
a) Neutrino
b) Antineutrino
c) Neutron
d) Proton
The fundamental forces of nature, in order of decreasing strength, are:
a) Strong, electromagnetic, weak, gravitational
b) Strong, weak, electromagnetic, gravitational
c) Electromagnetic, strong, weak, gravitational
d) Electromagnetic, weak, strong, gravitational
The concept in particle physics that describes the property of particles to have no substructure or internal structure is called:
a) Quark confinement
b) Particle unification
c) Particle indeterminacy
d) Particle simplicity
The process in which a particle and its corresponding antiparticle annihilate each other, producing energy, is called:
a) Pair production
b) Beta decay
c) Annihilation
d) Scattering
The process in which a particle and its antiparticle are created from energy is called:
a) Pair production
b) Beta decay
c) Annihilation
d) Scattering
The particle associated with the strong nuclear force and responsible for holding quarks together in a proton or neutron is the:
a) Gluon
b) Photon
c) W boson
d) Z boson
The particle associated with the electromagnetic force and responsible for the interaction between charged particles is the:
a) Gluon
b) Photon
c) W boson
d) Z boson
The particle associated with the weak nuclear force and responsible for the radioactive decay of particles is the:
a) Gluon
b) Photon
c) W boson
d) Z boson
The particle associated with the weak nuclear force and responsible for the neutral currents in particle interactions is the:
a) Gluon
b) Photon
c) W boson
d) Z boson
The particle associated with the Higgs mechanism and responsible for giving mass to other particles is the:
a) Gluon
b) Photon
c) W boson
d) Higgs boson
The particle associated with the weak nuclear force and responsible for the decay of a neutron into a proton is the:
a) Neutrino
b) Antineutrino
c) Electron
d) Positron
The process in which a neutron decays into a proton, emitting an electron and an antineutrino, is called:
a) Beta decay
b) Alpha decay
c) Gamma decay
d) Electron capture
The process in which a proton decays into a neutron, emitting a positron and a neutrino, is called:
a) Beta decay
b) Alpha decay
c) Gamma decay
d) Positron emission
The process in which a nucleus captures an electron and undergoes radioactive decay is called:
a) Beta decay
b) Alpha decay
c) Gamma decay
d) Electron capture
The process in which a nucleus emits a high-energy photon of electromagnetic radiation is called:
a) Beta decay
b) Alpha decay
c) Gamma decay
d) Electron capture
The concept in particle physics that describes the conservation of a property called “strangeness” in strong and electromagnetic interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Isospin symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “isospin” in strong interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Isospin symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “spin” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Isospin symmetry
d) Supersymmetry
The concept in particle physics that describes a hypothetical symmetry between particles and their superpartners is called:
a) Flavor symmetry
b) Spin symmetry
c) Isospin symmetry
d) Supersymmetry
The particle associated with the weak nuclear force and responsible for the decay of a proton into a neutron is the:
a) Neutrino
b) Antineutrino
c) Electron
d) Positron
The particle associated with the electromagnetic force and responsible for the interaction between quarks is the:
a) Gluon
b) Photon
c) W boson
d) Z boson
The concept in particle physics that describes the property of quarks to be confined within hadrons is called:
a) Quark confinement
b) Lepton confinement
c) Gluon confinement
d) Neutrino confinement
The process in which a quark and an antiquark combine to form a meson is called:
a) Quark annihilation
b) Quark fusion
c) Quark pair production
d) Quark decay
The process in which three quarks combine to form a baryon is called:
a) Quark annihilation
b) Quark fusion
c) Quark pair production
d) Quark decay
The concept in particle physics that describes the property of quarks to have fractional electric charges is called:
a) Fractional charge principle
b) Quark confinement
c) Quark flavor symmetry
d) Quark fractionalization
The particle associated with the strong nuclear force and responsible for the exchange of gluons between quarks is the:
a) Gluon
b) Photon
c) W boson
d) Z boson
The particle associated with the weak nuclear force and responsible for the decay of a meson into a lepton and its corresponding neutrino is the:
a) Neutrino
b) Antineutrino
c) Electron
d) Positron
The process in which a meson decays into a lepton and its corresponding neutrino is called:
a) Leptonic decay
b) Hadronic decay
c) Mesonic decay
d) Baryonic decay
The process in which a meson decays into other hadrons is called:
a) Leptonic decay
b) Hadronic decay
c) Mesonic decay
d) Baryonic decay
The concept in particle physics that describes the conservation of a property called “baryon number” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Baryon number symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “lepton number” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Lepton number symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “charge” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Charge symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “color charge” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Color charge symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “spin” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Charge symmetry
d) Supersymmetry
The particle associated with the strong nuclear force and responsible for the decay of a baryon into a meson and another baryon is the:
a) Gluon
b) Photon
c) W boson
d) Z boson
The particle associated with the weak nuclear force and responsible for the decay of a baryon into a lepton and its corresponding neutrino is the:
a) Neutrino
b) Antineutrino
c) Electron
d) Positron
The process in which a baryon decays into a lepton and its corresponding neutrino is called:
a) Leptonic decay
b) Hadronic decay
c) Mesonic decay
d) Baryonic decay
The process in which a baryon decays into other hadrons is called:
a) Leptonic decay
b) Hadronic decay
c) Mesonic decay
d) Baryonic decay
The concept in particle physics that describes the conservation of a property called “flavor” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Charge symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “topness” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Topness symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “charm” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Charm symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “bottomness” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Bottomness symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “strangeness” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Strangeness symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “upness” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Upness symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “downness” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Downness symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “mass” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Mass symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “energy” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Energy symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “momentum” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Momentum symmetry
d) Supersymmetry
The concept in particle physics that describes the conservation of a property called “electric charge” in interactions is called:
a) Flavor symmetry
b) Spin symmetry
c) Charge symmetry
d) Supersymmetry