Aray of light bends upon entering a new medium. what is this phenomenon called? a.) diffused reflection b.) reflection c.) refraction d.) dispersion

The answer is C.) refraction

Explanation:

Refraction is the change in direction and speed that a wave experiences when passing from one medium to another with a different refractive index. When the light passes from one transparent medium to another there is a change in its direction due to the different speed of propagation that the light has in the different material media.

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

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