Chapter 12, Problem 17TE

Astronomers find that light coming from one edge of the Sun has a slightly higher frequency than light from the opposite edge. What do these measurements tells us about the Sun's motion?

Solution

To determine:

The Sun's motion when one edge of the sun has a slightly higher frequency than light from the opposite side.

Answer:

These measurements states about that the Sun is spinning on its own axis.

Explanation:

This indicates that the movement of light is towards the Earth, indicating the speed is greater than it resembles, with the larger frequency.

It can also be interpreted as the Sun is spinning at point A is spinning towards Earth while point B is spinning away from Earth. This is one way we can determine the rate at which the Sun rotates about its own axis. These are Doppler shifts and show that one side is moving towards the Earth while the other side falls.

Conclusion:

Therefore, these measurements states about that the Sun is spinning on its own axis.