Physics 11th Chap 14 : Topic 8 - Maryam Publications

Physics Chapter 14 : Topic 8

Hadrons, Baryons and Mesons

1 / 35

A hadron is a particle that is:

A) Made of electrons only

B) A type of electromagnetic radiation

C) Made of quarks and interacts through the strong force

D) Always electrically neutral

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A hadron can be classified as:

A) A baryon or meson

B) A lepton or photon

C) A proton or electron only

D) A neutrino or antineutrino

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A baryon consists of:

A) 1 quark and 1 antiquark

B) One quark

C) Two quarks

D) Three quarks

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A meson consists of:

A) Three antiquarks

B) Three quarks

C) Two quarks only

D) One quark and one antiquark

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Which of the following is a baryon?

A) Neutrino

B) Proton

C) Electron

D) Photon

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Which of the following is a meson?

A) Neutron

B) Electron

C) Pion

D) Proton

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The quark composition of a baryon is:

A) $\mathbf{anti - q + anti - q}$

B) $\mathbf{q + q + q}$

C) $\mathbf{q}$

D) $\mathbf{q + anti - q}$

8 / 35

The quark composition of a meson is:

A) $\mathbf{q\ anti - q}$

B) $\mathbf{qqqq}$

C) $\mathbf{qqq}$

D) $\mathbf{anti - q\ anti - q\ anti - q}$

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Which particle is NOT a hadron?

A) Proton

B) Neutron

C) Electron

D) Meson

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Protons and neutrons belong to which class of hadrons?

A) Mesons

B) Leptons

C) Gauge bosons

D) Baryons

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Which statement about baryons is correct?

A) They contain three quarks.

B) They contain no quarks.

C) They contain a quark and an antiquark.

D) They are all electrically neutral.

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Which statement about mesons is correct?

A) They contain one quark and one antiquark.

B) They contain only electrons.

C) They contain three quarks.

D) They contain three antiquarks.

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Which combination represents a baryon?

A) $\mathbf{u + u + d}$

B) $\mathbf{d + anti - d}$

C) $\mathbf{u + anti - u}$

D) $\mathbf{anti - u + anti - d}$

14 / 35

Which combination represents a meson?

A) $\mathbf{u + d + d}$

B) $\mathbf{u + u + d}$

C) $\mathbf{d + d + d}$

D) $\mathbf{u + anti - u}$

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A particle containing three quarks is most likely:

A) A lepton

B) A photon

C) A meson

D) A baryon

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A particle containing a quark and an antiquark is classified as:

A) Lepton

B) Neutrino

C) Meson

D) Baryon

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Which of the following correctly compares baryons and mesons?

A) Baryons contain three quarks, while mesons contain quark-antiquark pairs.

B) Both contain three quarks.

C) Mesons contain three quarks, while baryons contain one quark.

D) Both are made of electrons.

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The proton is classified as a baryon because it contains:

A) One electron and two quarks

B) One quark and one antiquark

C) Two up quarks and one down quark

D) Three antiquarks

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The neutron is classified as a baryon because it contains:

A) No quarks

B) One quark and one antiquark

C) Two electrons and one proton

D) Three quarks $\mathbf{(udd)}$

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Which particle type always contains an antiquark?

A) Mesons

B) Neutrons

C) Protons

D) Baryons

21 / 35

If a newly discovered particle consists of three quarks, it would be classified as:

A) Meson

B) Baryon

C) Photon

D) Lepton

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If a newly discovered particle consists of a strange quark and an anti-strange quark, it is:

A) A meson

B) A baryon

C) A lepton

D) A neutrino

23 / 35

Which statement is false about hadrons?

A) They include baryons and mesons.

B) They are made of quarks.

C) They experience strong interaction.

D) They are all made of three quarks.

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A particle made of three antiquarks would be classified as:

A) A baryon (antibaryon)

B) A photon

C) A meson

D) A lepton

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The main difference between baryons and mesons is:

A) Their speed

B) Their quark composition

C) Their electric charge only

D) Their temperature

26 / 35

Which particle arrangement represents a baryon?

A) $\mathbf{q\ anti - q}$

B) $\mathbf{e}^{\mathbf{-}}\mathbf{e}^{\mathbf{+}}$

C) $\mathbf{\gamma\gamma}$

D) $\mathbf{qqq}$

27 / 35

Which particle arrangement represents a meson?

A) $\mathbf{e}^{\mathbf{- \ }}\mathbf{p}^{\mathbf{+}}$

B) $\mathbf{qqqq}$

C) $\mathbf{q\ anti - q}$

D) $\mathbf{qqq}$

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A hadron containing three quarks has:

A) Baryon number $\mathbf{0}$

B) Lepton number $\mathbf{+ \ 1}$

C) No quantum properties

D) Baryon number $\mathbf{+ \ 1}$

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A meson has baryon number:

A) $\mathbf{+ \ 3}$

B) $\mathbf{- \ 1}$

C) $\mathbf{0}$

D) $\mathbf{+ \ 1}$

30 / 35

Which statement best describes hadrons?

A) All hadrons are fundamental particles.

B) Hadrons contain only electrons.

C) Hadrons are composite particles made from quarks.

D) Hadrons cannot interact with other particles.

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Which of the following pairs contains only hadrons?

A) Photon and neutrino

B) Electron and photon

C) Proton and neutron

D) Neutrino and electron

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A meson differs from a baryon because a meson:

A) always has zero mass

B) contains an antiquark

C) has no quarks

D) is a lepton

33 / 35

Which classification is correct?

A) Neutron $\overset{\mathbf{\ \ \ \ \ \ \ \ \ \ \ \ \ }}{\rightarrow}$ baryon

B) Proton $\overset{\mathbf{\ \ \ \ \ \ \ \ \ \ \ \ \ }}{\rightarrow}$ meson

C) Electron $\overset{\mathbf{\ \ \ \ \ \ \ \ \ \ \ \ \ }}{\rightarrow}$ hadron

D) Photon $\overset{\mathbf{\ \ \ \ \ \ \ \ \ \ \ \ \ }}{\rightarrow}$ baryon

34 / 35

The quark-antiquark structure is found in:

A) Electrons

B) Neutrons only

C) Mesons

D) Protons only

35 / 35

A hadron with composition $\mathbf{u + d + s}$ would be:

A) A baryon

B) A lepton

C) A meson

D) A photon

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