Question

The refractive index of medium 2 with respective to medium 1 is x &refractive medium is y then what is the refractive index of medium 1

Answer 1

According to Snell’s law n2sin i=n1 sin r. Therefore sin i/sin r=n1/n2 or n12=ni/n2. Here, n1 and n2 are absolute refractive indices of medium 1 and 2. Absolute refractive index means refractive index w.r.t. air or vacuum.

pls mark as brilliantleast..