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Hydrogen-alpha is the shortest spectral emission in terms of energy in the Balmer series of the hydrogen spectrum. A bright red colored spectral emission at a wavelength of about 656.28 nm in the hydrogen spectrum is nothing but the hydrogen alpha spectral emission. And the hydrogen electron transition from the principal quantum number n=3 to n=2 gives this spectral emission in the visible region of the hydrogen spectrum.<br> The magnetic field generated due to the coupling interaction of the spin and the orbital angular momentum of the hydrogen electron during its shift from the 3S-orbit to the
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