TILLE :what are the refractive indexes of light in different material?
AIM : To find the refractive index of light in different materials.
APPARATUS :
Ruler
Protractor
Plain paper
Ray box
Perspex block
Water Container
Glass block
DIAGRAM
BACKGROUND INFORMATION
When a light ray travels from air into a clear material such as glass or water, you can see the ray change direction. This is called refraction. Refraction happens because light travels faster in the air than in other substances. The amount by which a light ray bends when it goes from air into another material depends on two things :
(a) what the material is
(b) The angle of incidence
The angle of incidence is the size of the angles between the ray before it enters the substance and the normal. The angle of refraction is the angle between the ray after it has bent , and the normal.
AIM : To find the refractive index of light in different materials.
APPARATUS :
Ruler
Protractor
Plain paper
Ray box
Perspex block
Water Container
Glass block
DIAGRAM
BACKGROUND INFORMATION
When a light ray travels from air into a clear material such as glass or water, you can see the ray change direction. This is called refraction. Refraction happens because light travels faster in the air than in other substances. The amount by which a light ray bends when it goes from air into another material depends on two things :
(a) what the material is
(b) The angle of incidence
The angle of incidence is the size of the angles between the ray before it enters the substance and the normal. The angle of refraction is the angle between the ray after it has bent , and the normal.