Question

refractiveindex of the rare medium





​

Answer 1

Answer:

It will be less than 1

Explanation:

for e.g.

Since the ray travels from a denser medium(glass) to a rarer medium(air), the ray of light will bend away from the normal, and hence the angle of refraction will be greater than angle of incidence. Hence the refractive index of air with respect to glass will be lesser than 1.

Answer 2

Answer:

indices.(c=3×108m/s).

Share

Study later

ANSWER

Given refractive index of denser medium with respect to rarer medium =1.125

Also we know μD.R=VelocityindensermediumVelocityinrarermedium1.125=VDVRVR=1.125VD

Also given VR−VD=0.25×108m/s

Substituting the value of VR we get 

VD=2×108

so VR=2.25×108