Answers

2015-08-11T17:52:23+05:30
i think angle is the distance between the normal line and the line drawn from center if it ...incident ray is the ray drawn frm the center if normal ray......

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2015-08-11T23:05:10+05:30

the angle between incident ray and normal at the point of incidence is known as angle of incidence

the angle between the refracted ray and normal is known as angle of refraction


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