What is a medium when describing the traveling of light rays and waves? (Chose 1)

• the medium is what the ray is traveling through
• the medium is the frequency that a wave travels
• the medium is the wavelength for a wave

Please help :)

The medium is what the ray is traveling through.

Explanation:

"Medium" is just another word for the space surrounding the ray. For example, if a ray of light is traveling through water, water would be the medium the light ray is traveling through.

and 1and 1

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!