Research Question: Refraction & Refraction in lenses
In your own words https://www.sciencelearn.org.nz/resources/49-refraction-of-light Refraction is the bending of light (it also happens with sound, water and other waves) as it passes from one transparent substance into another.
Light refracts whenever it travels at an angle into a substance with a different refractive index .
This change of direction is caused by a change in speed. For example, when light travels from air into water, it slows down, causing it to continue to travel at a different angle or direction.
Change in speed – if a substance causes the light to speed up or slow down more, it will refract (bend) more.
Angle of the incident ray – if the light is entering the substance at a greater angle, the amount of refraction will also be more noticeable. On the other hand, if the light is entering the new substance from straight on (at 90° to the surface), the light will still slow down, but it won’t change direction at all.…show more content… If light enters any substance with a higher refractive index it slows down. The light bends towards the normal line.
If light travels enters into a substance with a lower refractive index it speeds up. The light bends away from the normal line.
A higher refractive index shows that light will slow down and change direction more as it enters the