-
Which of the following is indicated by the colour of a star ?
-
- weight
- distance
- temperature
- size
- weight
Correct Option: C
Colour is caused by the temperature of the surface of the star. A star approximates the behavior of a black body radiator. As a black body gets hotter its color changes. Small stars are cool (less than 3000°C) with a reddish appearance, whereas big heavy stars are hot (over 30,000°C), and have a bluish glow.
