Physics 11th Chap 14 : Topic 15 - Maryam Publications

Physics Chapter 14 : Topic 15

Hadrons, Baryons and Mesons

1 / 34

A hadron is a particle that is:

A) Composed of quarks and affected by the strong interaction

B) Always electrically neutral

C) Made only of leptons

D) Made of electrons and photons

2 / 34

According to the Standard Model, hadrons are mainly classified into:

A) Leptons and bosons

B) Baryons and mesons

C) Fermions and photons

D) Quarks and antiquarks

3 / 34

A baryon consists of:

A) Two quarks only

B) One quark and one antiquark

C) Three antiquarks only

D) Three quarks

4 / 34

A meson is composed of:

A) One quark and one antiquark

B) Two antiquarks and one quark

C) Three quarks

D) Only one quark

5 / 34

Which of the following is a baryon?

A) Photon

B) Electron

C) Proton

D) Pion

6 / 34

Which of the following is a meson?

A) Pion

B) Proton

C) Neutron

D) Electron

7 / 34

The quark composition of a proton makes it a:

A) Meson

B) Gauge boson

C) Baryon

D) Lepton

8 / 34

The quark composition of a neutron is:

A) One quark and one antiquark

B) No quarks

C) Two quarks only

D) Three quarks

9 / 34

Which particle structure represents a meson?

A) $\mathbf{uuu}$

B) $\mathbf{uud}$

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

D) $\mathbf{udd}$

10 / 34

Which particle structure represents a baryon?

A) $\mathbf{u}$ anti$\ \mathbf{- \ d}$

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

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

D) $\mathbf{uud}$

11 / 34

The main difference between baryons and mesons is:

A) Their electric charges only

B) Their quark composition

C) Their speed of movement

D) Their temperature

12 / 34

Which statement about hadrons is correct?

A) All hadrons have zero charge.

B) All hadrons are made of quarks.

C) All hadrons contain electrons.

D) All hadrons are fundamental particles.

13 / 34

Which of the following is NOT a hadron?

A) Pion

B) Proton

C) Neutron

D) Electron

14 / 34

A particle made of three antiquarks is classified as:

A) Meson

B) Antibaryon

C) Photon

D) Lepton

15 / 34

A meson contains:

A) Three electrons

B) Three quarks

C) A quark and its corresponding antiquark

D) A proton and neutron

16 / 34

Which statement about baryons is true?

A) They contain only leptons.

B) They contain three quarks.

C) They have no mass.

D) They always contain a quark-antiquark pair.

17 / 34

Which group contains only hadrons?

A) Electron, proton, photon

B) Electron, photon, neutrino

C) Proton, neutron, pion

D) Photon, neutrino, electron

18 / 34

The classification of hadrons depends mainly on:

A) Their temperature

B) Their size only

C) Their color only

D) Their quark arrangement

19 / 34

Which of the following combinations cannot form a baryon?

A) $\mathbf{udd}$

B) $\mathbf{uud}$

C) $\mathbf{uuu}$

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

20 / 34

Which particle is an example of a baryon?

A) Proton

B) Pion

C) Kaon

D) Photon

21 / 34

Which particle is an example of a meson?

A) Antiproton

B) Proton

C) Kaon

D) Neutron

22 / 34

Hadrons are different from leptons because hadrons:

A) Cannot interact

B) Are composed of quarks

C) Have no mass

D) Always have positive charge

23 / 34

If a particle contains three quarks, it is most likely a:

A) Lepton

B) Meson

C) Baryon

D) Photon

24 / 34

If a particle contains one quark and one antiquark, it is:

A) A lepton

B) A meson

C) A baryon

D) A neutrino

25 / 34

The strong nuclear force acts directly on:

A) Electrons in atoms

B) Photons only

C) Quarks inside hadrons

D) Leptons only

26 / 34

Which statement correctly compares proton and pion?

A) Both are mesons.

B) Proton is baryon while pion is meson.

C) Proton is lepton while pion is baryon.

D) Both are baryons.

27 / 34

A hadron with baryon number $\mathbf{+ \ 1}$ is most likely:

A) A photon

B) A lepton

C) A baryon

D) A meson

28 / 34

Mesons generally have baryon number:

A) $\mathbf{+ \ 3}$

B) $\mathbf{0}$

C) $\mathbf{- \ 1}$

D) $\mathbf{+ \ 1}$

29 / 34

The reason protons and neutrons are not fundamental particles is that:

A) They cannot interact.

B) They have no mass.

C) They are composed of smaller particles called quarks.

D) They have no charge.

30 / 34

Which classification is correct?

A) Photon $\overset{\ \ \ \ \ \ \ \ \ \ \ \ \ }{\rightarrow}$ Meson, Kaon $\overset{\ \ \ \ \ \ \ \ \ \ \ \ \ }{\rightarrow}$ Lepton

B) Proton $\overset{\ \ \ \ \ \ \ \ \ \ \ \ \ }{\rightarrow}$ Baryon, Pion $\overset{\ \ \ \ \ \ \ \ \ \ \ \ \ }{\rightarrow}$ Meson

C) Electron $\overset{\ \ \ \ \ \ \ \ \ \ \ \ \ }{\rightarrow}$ Baryon, Neutron $\overset{\ \ \ \ \ \ \ \ \ \ \ \ \ }{\rightarrow}$ Meson

D) Proton $\overset{\ \ \ \ \ \ \ \ \ \ \ \ \ }{\rightarrow}$ Meson, Pion $\overset{\ \ \ \ \ \ \ \ \ \ \ \ \ }{\rightarrow}$ Baryon

31 / 34

Which combination correctly represents the structure of a baryon?

A) $\mathbf{q\overline{} + q\overline{}}$

B) $\mathbf{q +}$ electron

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

D) $\mathbf{q + q\overline{}}$

32 / 34

Which combination correctly represents a meson?

A) $\mathbf{q\overline{}\ q\overline{}\ q\overline{}}$

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

C) $\mathbf{q\ q\ q\overline{}}$

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

33 / 34

A particle made from three quarks and its antiparticle made from three antiquarks are:

A) Meson and antimeson

B) Boson and antiboson

C) Baryon and antibaryon

D) Lepton and antilepton

34 / 34

Which statement about mesons is incorrect?

A) They contain a quark and antiquark.

B) They contain three quarks.

C) They experience strong interaction.

D) They are hadrons.

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