Which is a greater angle of incidence or angle of refraction ,when light travels from denser medium to rarer medium.
When a ray of light travels from an optically denser medium to an optically rarer medium, it always bends away from the normal.
According to the Snell's law
Where ,
For an optically denser medium, refractive index is greater than that of the rarer medium .
As ,
From the Snell's law,
Therefore
Thus, the angle of refraction has to be greater than the angle of incidence i.e. it bends away from the normal.