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natulia [17]
3 years ago
5

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

Physics
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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3 years ago
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Keith_Richards [23]

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Explanation:

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