In an atomic bomb, the energy is released due to

(a) Chain reaction of neutrons and ${}_{92}{}^{235}\mathrm{U}$
(b) Chain reaction of neutrons and ${}_{92}{}^{288}\mathrm{U}$
(c) Chain reaction of neutrons and ${}_{92}{}^{240}\mathrm{P}$
(d) Chain reaction of neutrons and ${}_{92}{}^{286}\mathrm{U}$

Concept Questions :-

Mass-energy equivalent
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

If an electron and a positron annihiliate, then the energy released is
(a)         (b)
(c)            (d)

Concept Questions :-

Mass-energy equivalent
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The energy liberated on complete fission of 1 kg of ${}_{{}_{}{}^{}92}{}^{235}\mathrm{U}$ is (Assume 200 MeV energy is liberated on fission of 1 nucleus)
(a)                            (b)
(c)                            (d)

Concept Questions :-

Mass-energy equivalent
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The nuclear reaction ${}_{1}{}^{2}\mathrm{H}+{}_{1}{}^{2}\mathrm{H}\to {}_{2}{}^{4}\mathrm{He}$ (mass of deuteron = 2.0141 a.m.u. and mass of He = 4.0024 a.m.u.) is

(a) Fusion reaction releasing 24 MeV energy
(b) Fusion reaction absorbing 24 MeV energy
(c) Fission reaction releasing 0.0258 MeV energy
(d) Fission reaction absorbing 0.0258 MeV energy

Concept Questions :-

Mass-energy equivalent
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

In the following reaction the value of ‘X’ is
${}_{7}{}^{14}\mathrm{N}+{}_{2}{}^{4}\mathrm{He}\to \mathrm{X}+{}_{1}{}^{1}\mathrm{H}$
(a) ${}_{8}{}^{17}\mathrm{N}$              (b) ${}_{8}{}^{17}\mathrm{O}$
(c) ${}_{7}{}^{16}\mathrm{O}$              (d) ${}_{7}{}^{16}\mathrm{N}$

Concept Questions :-

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Which of the following are suitable for the fusion process

(a) Heavy nuclei         (b) Light nuclei
(c) Atom bomb           (d) Radioactive decay

Concept Questions :-

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A deutron is bombarded on ${}_{8}{}^{16}\mathrm{O}$ nucleus and $\mathrm{\alpha }$-particle is emitted. The product nucleus is
(a) ${}_{7}{}^{13}\mathrm{N}$           (b) ${}_{5}{}^{10}\mathrm{B}$
(c) ${}_{4}{}^{9}\mathrm{Be}$           (d) ${}_{7}{}^{14}\mathrm{N}$

Concept Questions :-

Types of decay
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A nuclear reaction given by
${}_{\mathrm{Z}}{}^{\mathrm{A}}\mathrm{X}\to {}_{\mathrm{Z}+1}{}^{\mathrm{A}}\mathrm{Y}+{}_{-1}{}^{0}\mathrm{e}+\overline{\mathrm{p}}$ represents
(a) $\mathrm{\gamma }$-decay                (b) Fusion
(c) Fission                  (d) $\mathrm{\beta }$-decay

Concept Questions :-

Types of decay
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The binding energy of nucleus is a measure of its

(a) Charge              (b) Mass
(c) Momentum        (d) Stability

Concept Questions :-

Nuclear binding energy
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Heavy water is
(a) Water at 4$°\mathrm{C}$
(b) Compound of deuterium and oxygen
(c) Compound of heavy oxygen and heavy hydrogen
(d) Water in which soap does not lather

Concept Questions :-

Nuclear reactor