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marishachu [46]
3 years ago
13

when a wave crosses a surface at an angle from one medium into another, why does it change directions aS IT MOVES ACROSS THE BOU

NDARY INTO THE NEW MEDIUM
Physics
1 answer:
puteri [66]3 years ago
8 0
 <span>This pivot is called refraction. It happens because different materials have different densities. The more dense the material the more atoms the light collides with and the slower it travels; the less dense, the fewer the collisions and hence a faster velocity. This pivoting, or refraction, is caused by the light either slowing down or speeding up.</span>
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