Q41
The light coming from stars gives the idea of their ________
A.
Size
B.
Rotational speed
C.
Mass
D.
Temperature
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Stars emit colors of many different wavelengths, but the wavelength of light where a star's emission is concentrated is related to the star's temperature - the hotter the star, the more blue it is; the cooler the star, the more red it is.