1.
Colour charge exists in ___
2.
Down quark has a charge of ___
3.
Which of the following is NOT a v-particle?
4.
In Moseley’s equation, frequency is proportional to ___
5.
For ions, atomic number equals ___
6.
Which is NOT true about atomic number?
7.
Which pair has opposite spin direction?
8.
Up and down quarks combine to form ___
9.
In Moseley’s equation ν = a(Z – b), the term “b” represents ___
10.
Kaons differ from pions because they contain ___
11.
Quark “flavour” refers to ___
12.
Moseley’s law relates X-ray frequency to ___
13.
Positrons are also called ___
14.
Who proposed the existence of neutrino?
15.
π-mesons are also known as ___
16.
v-particles were discovered by ___
17.
Which describes v-particles?
18.
n → n + π⁰ indicates emission of which particle?
19.
Which property is same for all isotopes of an element?
20.
Atomic number of an atom is equal to ___
21.
Neutral pions (π⁰) were discovered by which scientist?
22.
Mass of a π-meson is approximately how many times the mass of an electron?
23.
Which particle is highly unstable and produces γ-rays on annihilation?
24.
The charge of a proton arises due to ___
25.
Quarks possess which unique property?
26.
Kaons belong to which category of particles?
27.
π⁰ is produced mainly in reactions involving ___
28.
Moseley’s law helped establish which concept?
29.
Which particle is not a lepton?
30.
Mesons are made of ___
31.
Periodic properties depend mainly on ___
32.
Neutrinos are characterized by which property?
33.
According to the text, neutrino spins ___
34.
Which particle has fractional charge?
35.
Which constant in Moseley’s law depends on metal nature?
36.
Which fact about atomic number is correct?
37.
Antiprotons were discovered by ___
38.
A neutron is composed of ___
39.
Kaons include which charge states?
40.
Which of the following is a meson?
41.
Pions belong to which interaction primarily?
42.
Atomic number determines the ___ of an element.
43.
Up quark has a charge of ___
44.
Positrons were discovered by ___
45.
Which discovery involved p–p and p–n collisions?
