In: Physics
Which one of the following statements about brown dwarfs is false? (a) A brown dwarf is in hydrostatic equilibrium. (b) A brown dwarf is less massive than a normal star. (c) A brown dwarf shines primarily at infrared wavelengths. (d) A brown dwarf’s diame-ter is at least 13 times that of Jupiter. (e) Unlike a planet, a brown dwarf does produce energy through nuclear fusion, at least for a short time.
A brown dwarf would have mass between 13 to 75 times the mass of Jupiter. But, the size of the brown dwarf would be slightly larger than the size of jupiter. So, (d) would be a wrong statement.