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Energy

The diagram and numbers refer to the Sun’s fusion reaction (our
source of energy ) and talk about energy of the two photons emitted
from the Sun in one fusion reaction
– $2$ refers to the mass of Deuterium so it represents
inertia
– $4$ refers the minimum number of Hydrogen atoms required for a
fusion to take place also called critical mass
– $f$ refers to frequency. Energy of a photon is directly
proportional to it’s frequency (Planck-Einstein relation), it the
cause of change in energy
– $h$ refers to the Planck constant. The reduced Planck constant is
the quantum of angular momentum of a Photon
– $8v$ refers to $(8 times tt{frequency})$. Energy of one photon
is $hf$ by Planck-Einstein relation. Energy of the two photons will
be $2hf$. Value of $h$ is $4.13 times 10^{-15} tt{ eV}$. Since
frequency of an emitted photon can vary, total energy emitted in
one fusion reaction is approximately $2times4times f times 4.13
times 10^{-15}tt{ eV}$, which can also be written as ~$8f$ or
$8v$ in the scientific notation.

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