a light ray travels from air (n-1) into a second medium at an angle of 20 degree. The light is refracted inside the second medium at an angle of 15 degree. What is the index of refraction of the second medium?

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.