When ₃Li⁷ nuclei are bombarded by protons, and the resultant nuclei are ₄Be⁸, the emitted particles will be
Options
(a) neutrons (b) alpha particles (c) beta particles (d) gamma photons
Correct Answer:
gamma photons
The radius of germanium nuclide is measured to be twice the radius of ₄⁹Be. The number of nucleons in Ge are
Options
(a) 72 (b) 73 (c) 74 (d) 75
Correct Answer:
72
Explanation: […]
The binding energy of deutron is 2.2 MeV and that of ₂⁴He is 28 MeV. If two deutrons are fused to form one ₂⁴He then the energy released is
Options
(a) 30.2 MeV (b) […]
The operation of a nuclear reactor is said to be critical, if the multiplication factor(k) has a value
Options
(a) 1 (b) 1.5 (c) 2.1 (d) 2.5
Correct Answer:
1
Explanation:
No explanation […]
The emission line of Lyman corresponds to the absorption line in laboratory temperature. The emission line of Balmer at room temperature
Options
(a) corresponds to the absorption line of Balmer series (b) does […]
In which case positive work has to be done in seperating them?
Options
(a) electron-electron (b) proton-proton (c) neutron-neutron (d) electron-neutral atom
Correct Answer:
electron-neutral atom
Explanation:
No explanation available. Be the first […]
The order of distance of an electron revolving in an atom from nucleus is
Options
(a) 10⁻¹² m (b) 10⁻¹⁰ m (c) 10⁻⁸ m (d) 10⁻¹⁴ m
Correct Answer:
10⁻¹⁴ m
Explanation:
No […]
The atomic number of the most common element in nuclear fusion is
Options
(a) 92 (b) 80 (c) 30 (d) 1
Correct Answer:
1
Explanation:
No explanation available. Be the first to write […]
The half life of a radioactive isotope ‘X’ is 20 years. It decays to another element ‘Y’ which is stable. The two elements ‘X’ and ‘Y’ were found to be in the ratio of 1 […]
Two nuclei are said to be mirror nuclei of
Options
(a) number of protons in the two nuclei are equal (b) number of neutrons in the two are equal (c) number of neutrons […]
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