Bharat Radiation (12.87 to 31 nm) produced by beta, gamma and X-ray emissions produced by 235-Uranium fission taking place on Sun's core surface causes Extreme ultraviolet (EUV),UV, Visible light and near infrared radiation by previously unknown phenomenon, Padmanabha Rao Effect.
Reference:
M.A. Padmanabha Rao,
Discovery of Sun’s Bharat Radiation emission causing Extreme Ultraviolet (EUV) and UV dominant optical radiation,