In the nucleus of 11Na23, the number of protons, neutrons and electrons are.
11,12,0
23,12,11
12,11,0
23,11,12
Which of the following statements is true for nuclear forces?
They obey the inverse square law of distance.
They obey the inverse third power law of distance
They are short range forces
They are equal in strength to electromagnetic forces.
Complete the equation for the following fission process:
92U235 + 0n1 → 38Sr90 + ....
54Xe143 + 3 0n1
54Xe145
57Xe142
54Xe142 + 0n1
Solar energy is mainly caused due to.
fision of protons during synthesis of heavier elements
gravitational contraction
burning of hydrogen in the oxygen
fission of uranium present in the sun
The nuclei 6C13 and 7N14 can be described as.
Isotones
Isobars
Isotopes of carbon
Isotopes of nitrogen
What is the radius of iodine atom? ( Atomic No. 53, Mass No. 126).
2.5 × 10-11m
2.5 × 10-9m
7 × 10-9 m
7 × 10-6 m
If the nuclear force between two protons, two neurons and between proton and neurton is denoted by Fpp, Fnn and Fpn respectively, then.
Fpp ≈ Fnn ≈ Fpn
Fpp ≠ Fnn and Fpp = Fnn
Fpp = Fnn = Fpn
Fpp ≠ Fnn ≠ Fpn
The mass density of a nucleus varies with mass number A as.
A2
A
constant
1/A
A free neutron decays into a proton, an electron and.
A beta particle
An alpha particle
an antineutrino
a neutrino
The average binding energy of a nucleon inside an atomic nucleus is about.
8 MeV
8 eV
8J
8 erg
