Question

Which of the following is FALSE?

a. blue main sequence stars are less luminous than red main sequence stars
b. blue stars are hotter than red stars brown dwarfs do not have nuclear reactions in their cores
c. main sequence stars with masses of 0.1 solar masses are less luminous than the Sun M type
d. main sequence stars will live longer than 10 billion years

Answer 1

b)blue stars are hotter than red stars brown dwarfs do not have nuclear reactions in their cores.