by what amount does the phase of a light wave change when it reflects from the interface of a medium that has a higher index of refraction?

are their multiple choices ?

explanation:

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!