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Per NCERT, what are the laws of REFRACTION of light (Snell's law)?
A(i) Incident ray + refracted ray + normal at the point of incidence lie in the SAME PLANE (ii) sin i / sin r = constant (refractive index of medium 2 w.r.t. medium 1)
BLight bends randomly
CAngle of incidence = angle of refraction
DRefraction has no laws
Answer & Solution
Correct answer: A. (i) Incident ray + refracted ray + normal at the point of incidence lie in the SAME PLANE (ii) sin i / sin r = constant (refractive index of medium 2 w.r.t. medium 1)
Per NCERT §9.3.1, Snell's law: rays coplanar + sin i / sin r = n21.
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