StudentAidUnit 12: Unit 12: Nuclear and Particle Physics — Mcqs
11th Class Physics · Unit 12: Nuclear and Particle Physics
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Multiple Choice Questions
1.Which one of the following is the fundamental particle?
2.The first discovered anti-particles is:
3.Which one of the following pair of particles creates annihilation?
4.The strong nuclear force between the two particles is mediated by:
- a Gluons
- b Photon
- c Mesons
- d gravitons
5.Which one of the following forces interacts between two particles through photons?
6.When a neutron changes into a proton, then we will observe:
7.Baryon is formed by combination of:
8.Which one of the following forces has negligible effect between the elementary particles?
9.Which particles are produced by strong interaction?
- a Graviton
- b Leptons
- c Hadrons
- d Mesons
10.A strong nuclear force exists between the nucleons of:
11.Which one of the following radiation/particles has the highest ionization power?
12.Which one of the following radiation/particles has the highest penetrating power?
13.A change occurs in atomic member of a nucleus but its mass number remains the same by decay of:
14.In a nucleus, a neutron changes into a proton, the atomic number changes by one, the mass number will:
15.The electroweak theory was introduced by:
16.The asymmetry of matter and anti-matter is due to imbalance number of:
17.Which one of the following particle is responsible for the mass of the fundamental particle?
18.A proton is composed of up and down quarks, the order of quarks is:
19.The number of quarks that composed of a neutron is:
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Conservation laws
1.Disintegration of nucleus obeys the law of conservation of:
2.Which of the following conservation law hold in nuclear transmutation?
Radio activity
3.The spontaneous emission of α, β and γ-radiations from certain element is called:
4.β-particle is regarded as fast moving:
5.γ-rays are regarded as:
6.γ-rays has penetrating power:
7.Ionizing power of γ-rays is:
8.Which of the following is a better shield against γ-rays:
9.γ-rays can be used to detect:
10.α, β and γ-rays are emitted from a radioactive substance:
11.An α-particle is the nucleus of:
12.The γ-rays photon is stronger than:
- a Ultra-violet ray photon
- b X-ray photon
- c Micro-wave photon
- d All of the above
13.X-rays differ from γ-rays in respect of their:
Fundamental forces
14.The number of fundamental forces present in nature are:
15.Dr. Abdus Salam of Pakistan was one of contributor to the unification of:
16.The weakest force of all the forces:
17.Nuclear forces exist between:
Quarks
18.The building blocks of protons and neutrons are called:
19.Quarks are of:
20.Quarks carry:
21.Minimum of three quarks are necessary to form a:
Structure of nucleus
22.Chemical properties of an atom are determined by its:
23.The chemical behavior of an element is determined by:
24.Number of neutrons in ₃₂U:
Electron
25.The lightest particle of matter which can physically exists is called:
Meson
26.Meson is made from: