Write and explain the Einstein theory of special relativity.
Write and explain the Einstein theory of special relativity.
From theory of special relativity it is necessary to treat mass as another form of energy.
Before the theory of special relativity it was presumed that mass and energy were conserved separately in a reaction.
But Einstein showed that mass is another form of energy and one can convert mass-energy into other forms of energy like kinetic energy and vice-versa.
This mass energy equivalent is related to $\mathrm{E}=m c^{2}$ where $m=$ mass, $c=$ velocity of light in vacuum. Its value is equal to $3 \times 10^{8} \mathrm{~ms}^{-1}$.
Experimental verification of the Einstein's mass-energy relation has achieved in the study of nuclear reactions among nucleons, nuclei, electrons and other more recently discovered particles. In a reaction the conservation of law of energy states that the initial energy and the final energy are equal.
This concept is important in understanding nuclear masses and the interaction of nuclei with one another.
Similar Questions
From the relation $R=R_{0} A^{1 / 3},$ where $R_{0}$ is a constant and $A$ is the mass number of a nucleus, show that the nuclear matter density is nearly constant (i.e. independent of $A$).
From the relation $R=R_{0} A^{1 / 3},$ where $R_{0}$ is a constant and $A$ is the mass number of a nucleus, show that the nuclear matter density is nearly constant (i.e. independent of $A$).
The atoms of same element having different masses but same chemical properties, are called
The atoms of same element having different masses but same chemical properties, are called
Ratio of nuclear radii of ${ }^{135} Cs$ to ${ }^{40} Ca$ is
Ratio of nuclear radii of ${ }^{135} Cs$ to ${ }^{40} Ca$ is
A nucleus of mass number $189$ splits into two nuclei having mass number $125$ and $64$ . The ratio of radius of two daughter nuclei respectively is:
A nucleus of mass number $189$ splits into two nuclei having mass number $125$ and $64$ . The ratio of radius of two daughter nuclei respectively is:
- [NEET 2022]
The deuteron is bound by nuclear forces just as $H-$ atom is made up of $p$ and $e$ bound by electrostatic forces. If we consider the force between neutron and proton in deuteron as given 1 e 2 in the form of a Coulomb potential but with an effective charge $e' \,:\,F = \frac{1}{{4\pi { \in _0}}}\frac{{e{'^2}}}{r}$ . estimate the value of $(e'/e)$ given that the binding energy of a deuteron is $2.2\, MeV.$
The deuteron is bound by nuclear forces just as $H-$ atom is made up of $p$ and $e$ bound by electrostatic forces. If we consider the force between neutron and proton in deuteron as given 1 e 2 in the form of a Coulomb potential but with an effective charge $e' \,:\,F = \frac{1}{{4\pi { \in _0}}}\frac{{e{'^2}}}{r}$ . estimate the value of $(e'/e)$ given that the binding energy of a deuteron is $2.2\, MeV.$