According to current theories,the energy source of radio galaxies and quasars is

Question

Quizplus · Accepted Answer

Current theories suggest that radio galaxies and quasars are powered by accretion of material onto a supermassive black hole at the center of the object that can be as massive as 100 million times the mass of the sun. This process releases tremendous amounts of energy, which can be observed as the radio emission from the surrounding lobes. Option A is incorrect as there is no evidence of pulsars being the energy source for radio galaxies and quasars. Option C describes the process of nuclear fusion that occurs in stars but is not applicable in this context. Option D describes the process of star formation, which is not related to the energy source of radio galaxies and quasars.

According to Current Theories,the Energy Source of Radio Galaxies and Quasars