In an experiment to trace the path of a ray of light passing through a rectangular glass slab, angle of incidence in air was given as 60^(@) . Two students P and Q found angle of refraction as 42^(@) and 65^(@) respectively. Who is right and why?

In an experiment to trace the path of a ray of light passing through a

1.	In an experiment to trace the path of a ray of light passing through a rectangular glass slab, angle of incidence in air was given as 60^(@) . Two students P and Q found angle of refraction as 42^(@) and 65^(@) respectively. Who is right and why?
Answer» Solution :When a ray of LIGHT goes from air to glass, it bends TOWARDS the normal. So, the angle of REFRACTION must be less than angle of incidence. The STUDENT P is RIGHT.