Good Morning Sir,
all about ,,,,
Circular Refraction: At the surface of some planets because of radial change in the RI of air(variation of RI with altitude) the horizontal light beam bends in such a way that it circularly envelops the planet. This situation is called circular refraction.If the radius of the planet be R Then .......
1/R+h = -dmu/mu*dh how this expression came??
plz elaborate it wid example