Question

why does light bend when it enters a different medium ? Does light bend by the same amount while entering different media ?

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Answer 1

Answer:

Change of speed causes change of direction

Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). ... This change of direction is called refraction. When light enters a more dense substance (higher refractive index), it 'bends' more towards the normal line.

Answer 2

Answer:

Change of speed causes change of direction

Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). ... This change of direction is called refraction. When light enters a more dense substance (higher refractive index), it 'bends' more towards the normal line.