Explain why color is a measure of a star’s temperature.

The color of a star plays a significant role in determining its age as well as its temperature. A star normally appears to be shining as we see through the atmosphere. An increase in the temperature of a star releases more energy and this can be observed in the various colors of color spectrum.

The hottest star generally appears to be bluish-white in color whereas the coldest star usually appears to be reddish in color.

Thus, a star's color can help us determining its temperature.

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.