In the fusion reaction, ${ }_1 \mathrm{H}^2+{ }_1 \mathrm{H}^2 \rightarrow{ }_2 \mathrm{He}^4+\mathrm{Q},…
In the fusion reaction, ${ }_1 \mathrm{H}^2+{ }_1 \mathrm{H}^2 \rightarrow{ }_2 \mathrm{He}^4+\mathrm{Q}, \mathrm{Q}$ is energy released. If ' $\mathrm{c}$ ' is the speed of light and ' $\mathrm{m}$ ' is the mass of each deuterium nucleus then the mass of helium nucleus formed is