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3 years ago

5

Light waves travel in straight lines in all directions from the source of the light, unless

1 answer:

Ainat [17]3 years ago

6 0

A. the medium through which the light travels changes.

Explanation:

Light waves will continue to travel in a straight line in all directions from their source unless the medium through which the light travels changes.

A change in medium causes light to exhibit different properties. Also, when light hits an obstacle, they can be diffracted.

The way light travels on crossing a boundary differs.
At the boundary between two medium, light can either be reflected back or refracted when they cross the medium
This will cause the light rays to bend towards or away from the normal depending on the properties of the medium.

Learn more:

Refraction brainly.com/question/12370040

#learnwithBrainly

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