7. Refractive index of second medium with respect to the first medium

Ray of light travels from a rarer medium to a denser medium. The angles of incidence and refraction are respectively 45° and 30°. Calculate the refractive index of the second medium with respect to the first medium.

 

  

Answer:

The refractive index of the second medium with respect to the first is .

(Note: Answer should be in a single decimal)