Question

what is The minimum value of refractive index ?

Answer 1

minimum value of Absolute refractive index is 1 and relative refractive index is lesser than 1.

Answer 2

The minimum value of the refractive index is 1.

• In optics, a refraction index (also referred to as a refraction index or refraction index) may be a non-dimensional range that describes how briskly light-weight travels through objects.
• The ratio determines what proportion light-weight is ee, or opposed once an associate object enters. this is often explained by Snell's law of resistance, n1 sinθ1 = n2 sinθ2, wherever and θ2 area unit at the angle of prevalence and refraction, severally, of the ray crossing the link between 2 media with refractive indications n1 and n2.