The ray that passes from one medium to another during refraction is called refracted ray.
The bending of light when it passes from one medium to another is called refraction. The ray transmitted into the new medium is called the refracted ray. The ray reflected from the surface of the new medium is called the reflected ray.
Formula to find refracted angle, also known as Snell's law:
n1 sin ∅1 = n2 sin ∅2, whereas,
n1 = incident index,
n2 = refracted index,
∅1 = incident angle,
∅2 = refracted angle.
What causes refraction of light?
The cause of the refraction of light is that light travels at different speeds in different medium. This change in the speed of light when it moves from one medium to another causes it to bend. Refraction is caused due to the change in speed of light when it enters from one medium to another.
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