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| A ray of light strikes an air-glass interface at an angle of incidence = 60 and gets refracted at an angle of refraction r. On increasing the angle of incidence, what happens to the angle of refraction ? |
increases remains same decreases is equal to 60
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| increases |
| By Snell's Law, the ratio of angle of incidence and angle of refraction is a constant called refractive index. Thus, if angle of incidence increases, the angle of refraction must also increase. |
