Describe what would happen to the surface temperature of a star it its radius trioled but there was no change in luminosity.
a.Luminosity increases both with Increasing radus and increasing temperature. Therefore, lower temperature would be required to maintain star's constant luminosity
b.Lumnosity increases with increasing temperature, but not depends on the radius of a star. Therefore, the temperature of star would not change with the changing radius wihout change of luminouty
c.Luminosity increases with increasing temperature and decreases with increasing radius. Therefore, higher temperature would be required to maintain star's constant temperature
d.Luminotity Increases wih increasing radius and do not depends on the surface temperature of the star. Therefore, it is not possible for a star to change a radus without changes in luminosty