The angle does not hit anything! A ray of light hits a mirror or glass block and the angle that the ray makes with the vertical at the point of contact is the angle of incidence.
A bevelled piece of glass.
It does not move from glass to air but undergoes internal refraction. That is, it is refracted back into the glass at the interface.
The angle of incidence does not change. I think you want to know the relationship between the angle of incidence and the angle of transmission. In the case of from air to glas, the transmission angle is smaller than the angle of incidence due to a higher index of refraction of glass than that of air. Look up Snell's Law for better understanding.
same problem dude..
As per Brewster's law, the angle of polarisation or polarising angle is got by the expression tan ip = mu. So for water mu = 1.33 and its polarizing angle = 53 deg 3 min For glass mu would vary for different glass such as flint etc.
relation between critical angle and polarising angle?
The angle does not hit anything! A ray of light hits a mirror or glass block and the angle that the ray makes with the vertical at the point of contact is the angle of incidence.
The critical angle for glass to air surface is approximately 42 degrees. This means that when light travels from glass to air and the angle of incidence exceeds 42 degrees, total internal reflection occurs.
A bevelled piece of glass.
It does not move from glass to air but undergoes internal refraction. That is, it is refracted back into the glass at the interface.
Decrease if the light is entering the glass at an angle greater than the critical angle, and increase if the light is entering the glass at an angle less than the critical angle. The angle the ray makes with the surface normal is known as the angle of refraction.
The angle of refraction in the glass is likely to be less than 45 degrees since light bends towards the normal when it passes from a less dense medium (air) to a denser medium (glass). The exact angle of refraction can be calculated using Snell's Law: n₁sinθ₁ = n₂sinθ₂, where n₁ and n₂ are the refractive indices of air and glass, respectively.
The critical angle of light passing from glass to water is minimum when the light is passing from a denser medium (glass) to a rarer medium (water), which is when the light travels along the normal. At this orientation, the critical angle is the smallest possible value for the glass-water interface.
yes
I found a picture of a martini glass, and doing my best to measure the angle from the picture on the monitor, it looks like the bottom angle is about 70°, and the angle between the top edge and horizontal is about 55°. So that one would not be an obtuse angle. See related link.
The angle of incidence is always greater than the angle of refraction. The refractive index of glass is greater than that of air, so the speed of light in air is more than the speed of light in glass. Therefore it slows down and bends towards the normal.