Is n21=n1/n2 or n2 /n1 Share with your friends Share 4 Ankur answered this The refractive index of medium 2 with respect to medium 1 is :μ21 = μ21 = μ2μ1 5 View Full Answer Aishwarya answered this sin i / sin r n21 = v1/v2 = c/n1x n2/c = n2/n1 15
