Physics MCQs for NEET — Practice Questions with Answers

${}_3{}^1\mathrm{H}+{}_2{}^1\mathrm{H}\to {}_4{}^2\mathrm{He}+{}_1{}^0\mathrm{n}$

${}_{92}{}^{238}\mathrm{U}\to {}_{82}{}^{206}\mathrm{Pb}+8\left({}_2{}^4\mathrm{He}\right)+6\left({}_{-1}{}^0\mathrm{\beta }\right)$

${}_7{}^{12}\mathrm{C}\to {}_6{}^{12}\mathrm{C}+{\mathrm{\beta }}^{+}+\mathrm{\gamma }$

None of these

Two light nuclei combine to produce a heavier nucleus

A light nucleus bombarded by thermal neutrons breaks up

A heavy nucleus bombarded by thermal neutrons breaks up

A heavy nucleus breaks up by itself

Nuclear fission             

Nuclear fusion

Radioactive decay       

None of these

0           

1

2           

3

Proton             

Neutron

Positron           

Neutrino

Charged and has spin

Charged and has no spin

Charge less and has spin

Charge less and has no spin

 $6\times {10}^{18}$        

$6\times {10}^{17}$

${10}^{17}$             

$6\times {10}^{16}$

More than 5         

3 to 5

2 to 3                   

1 to 2

${}_5{}^{10}\mathrm{B}$           

 ${}_5{}^9\mathrm{B}$

${}_5{}^{11}\mathrm{B}$           

${}_2{}^4\mathrm{He}$

Chain reaction of neutrons and ${}_{92}{}^{235}\mathrm{U}$

Chain reaction of neutrons and ${}_{92}{}^{288}\mathrm{U}$

Chain reaction of neutrons and ${}_{92}{}^{240}\mathrm{P}$

Chain reaction of neutrons and ${}_{92}{}^{286}\mathrm{U}$