posted by geet .
to find angle of deviation with angle of incidence through a hollow prism with different transparent fluids(i.e ., water,kerosene,sprit,turpentine oil) with angle of incidenceof30,35,40,45,50,55,60 degree.
Angles of incidence and refraction are angles measured from the normal.
If n represents the refractive index between air and the medium, the equation that governs the relationship between them is
which gives the value of θr as
Since n>1 for the media named in the question, the refracted ray would bend towards normal.
Take n=1.33 for water.
Angle of incidence, θi=30°
Angle of refraction
Review your class notes and/or textbook if it is still not clear.