1st Year Physics Chapter 14 Test14. Particle Physics

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Which particle gives mass to matter according to Higgs?
   1. Photon
   2. Gluon
   3. Higgs boson
   4. Z-boson
2. The Higgs field gives mass to
   1. all elementary particles
   2. only photons
   3. only electrons
   4. only quarks
3. Which force binds quarks inside hadrons?
   1. Electromagnetic force
   2. Gravitational force
   3. Weak nuclear force
   4. Strong nuclear force
4. Which particle is exchanged between quarks?
   1. Photon
   2. Gluon
   3. Electron
   4. Neutrino
5. According to string theory, forces like electromagnetism arise from
   1. quarks
   2. vibrations of strings
   3. molecules
   4. photons only
6. Particles made of quark-antiquark pairs are called:
   1. Baryons
   2. Mesons
   3. Leptons
   4. Bosons
7. Conservation of nucleons states that:
   1. Nucleons can disappear
   2. Total number of nucleons before and after reaction is constant
   3. Neutrons convert into photons
   4. Protons vanish
8. In beta-minus decay, a down quark changes into:
   1. Up quark
   2. Strange quark
   3. Charm quark
   4. Top quark
9. Synchrotron accelerators move particles in
   1. Straight line
   2. Spiral pattern
   3. Closed circular path
   4. Zig-zag path
10. Conservation of charge in nuclear reactions means:
    1. Charge is created
    2. Charge is destroyed
    3. Total charge remains constant
    4. Charge doubles