Draw a labelled sketch to illustrate pair production.

Important Questions on Mass-Energy Equivalence : Nuclear Binding Energy

HARD

12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 16 - Mass-Energy Equivalence : Nuclear Binding Energy>QUESTIONS>Q 2

Write the equation of pair annihilation. Why are two (not one) photons produced in pair annihilation?

MEDIUM

12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 16 - Mass-Energy Equivalence : Nuclear Binding Energy>QUESTIONS>Q 3

What is meant by the term ‘binding energy of a nucleus?

EASY

12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 16 - Mass-Energy Equivalence : Nuclear Binding Energy>QUESTIONS>Q 4

What is meant by ‘mass defect’ of a nucleus? How is it related with the ‘binding energy’ of the nucleus?

EASY

12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 16 - Mass-Energy Equivalence : Nuclear Binding Energy>QUESTIONS>Q 5

‘The binding energy per nucleon of $\alpha$-particle is $7.07 MeV$.’ What do you mean by this statement?

EASY

12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 16 - Mass-Energy Equivalence : Nuclear Binding Energy>QUESTIONS>Q 6

Energy-mass interconversion takes place only in nuclear reactions and never in chemical reactions. Do you agree?

EASY

12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 16 - Mass-Energy Equivalence : Nuclear Binding Energy>QUESTIONS>Q 7

A spring is kept in a compressed state with its both ends tied. On immersing this spring in acid, it is dissolved. Where does the potential energy stored in the compressed spring go?

EASY

12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 16 - Mass-Energy Equivalence : Nuclear Binding Energy>QUESTIONS>Q 8

Why is the mass of nucleus less than the sum of the masses of nucleons forming it? Can it be more also? Why?

EASY

12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 16 - Mass-Energy Equivalence : Nuclear Binding Energy>QUESTIONS>Q 9

${}_1\mathrm{H}^3$ and ${}_2\mathrm{He}^3$ have almost same atomic mass. have they same nuclear binding energy?