General Science/Basic Science Nuclear Physics Nuclear Terms Sample Test,Sample questions

Question:
.Empirical formula for the nuclear radius R is

1.ro A1/3

2.ro1/3 A

3.(ro A)1/3

4.ro A


Question:
A nucleus is symbolically represented as ZXA where A represents the number of

1.neutrons

2.protons

3.nucleons

4.electrons


Question:
Charge of a proton is equal to

1.1.6 ? 1019 C

2.1.66 ? 10-27 C

3.1.6 ? 10-19 C

4.1.66 ? 1027 C


Question:
Charge of the nucleus is due to

1.protons in it

2.neutrons in it

3.both protons and neutrons in it

4.electrons


Question:
Energy equivalent of 1 amu is equal to

1.1.66 ? 10-27 ? (3?108)2J

2.1.66 ? 10-27 ? 3?108 J

3.1.66 ? 10-27 ? 3?109 J

4.1.66 ? 10-8 J


Question:
Energy of an electron in atom and nuclear energy are respectively in the order of

1.MeV and eV

2.MeV and MeV

3.eV and eV

4.eV and MeV


Question:
Isotopes of a given element have28.

1.same mass number

2.same neutron number

3.same chemical properties

4.different chemical properties


Question:
Mass difference is equal to

1.Real mass � (Zmp + Nmn)

2.(Zmn + Nmp) � real mass

3.Real mass � (Zmn + Nmp)

4.(Zmp + Nmn) � real mass


Question:
Mass number refers to

1.the number of neutrons

2.the number of protons

3.the sum of the number of neutrons and protons in the nucleus

4.the number of positrons


Question:
Mass of proton is

1.1.007277 amu

2.1.6600 amu

3.1.008665 amu

4.1.00325 amu


Question:
Mass-energy equation is

1.E = m/c2

2.E = mc

3.E = m/c

4.E = mc2


Question:
Nuclear density is equal to

1.1.816 ? 1010 kg m-3

2.1.816 ? 1017 kg m-3

3.1.314 ? 104 kg m-3

4.1.314 ? 1010 kg m-3


Question:
Nuclear term A represents the number of

1.neutrons

2.protons

3.electrons

4.nucleons


Question:
Nuclei of isotopes have same

1.atomic number

2.neutron number

3.mass number

4.mass deflect


Question:
Nucleons are held together by

1.electrostatic force

2.nuclear force

3.magnetic force

4.gravitational force


Question:
One Fermi is equivalent to

1.10-10 m

2.10-12 m

3.10-15 m

4.10-16 m


Question:
Pick out isotopes from the following

1.1H1 6C12

2.7N15 8O16

3.1H3 2He3

4.92U235 92U238


Question:
Real nucleus mass is

1.greater than (Zmp + Nmn)

2.less than (Zmn + Nmp)

3.less than (Zmp + Nmn)

4.greater than (Zmn + Nmp)


Question:
The atomic mass unit (amu) is defined as 1/12 of the mass of

1.6C14 atom

2.6C11 atom

3.6C12 atom

4.6C13 atom


Question:
The atomic number Z of a element is equal to13.

1.the number of neutrons

2.the number of protons

3.the number of positrons

4.the sum of number of the neutrons and protons


Question:
The atomic number Z the neutron number N and the mass number A are related by

1.A � Z = N

2.A + Z = N

3.A + N = Z

4.2A= Z � N


Question:
The mass of a neutron is

1.1.00728 amu

2.1.00866 amu

3.1.66 amu

4.1.602 amu


Question:
The mass of proton is about

1.1836 times that of electrons

2.1836 times that of neutrons

3.1/1836 times that of electrons

4.1/1836 times that of neutrons


Question:
The neutron which is slightly

1.heavier than proton possesses charge

2.lighter than proton possesses charge

3.lighter than proton possesses no charge

4.heavier than proton possesses no charge


Question:
The radius of a nucleus is about

1.10-10m

2.10-11m

3.10-7m

4.10-14m


Question:
The radius of an atom is about

1.10-7m

2.10-10m

3.10-11m

4.10-14m


Question:
The term nucleon is used to refer to

1.electron

2.photon

3.positron

4.either neutron or proton


Question:
Which of the following are referred to as nucleons

1.protons and electrons

2.neutrons and electrons

3.neutrons and protons

4.neutrons and positrons


Question:
Which of the following is different for the isotopes of the same element

1.atomic number

2.atomic weight

3.number of electrons

4.number of protons


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