Discover how wave refraction works, why it happens and how it affects surfing in this easy-to-understand guide.

Introduction If you pour water into a clear glass ... for the oil is very close to the index of refraction for glass. Therefore, as light travels through the oil and into the glass eyedropper ...

It is refraction that makes some objects appear to bend when they are viewed through water, like the straw shown here. If the light hits the surface of a glass block at an angle, this change in ...

Light refraction is caused when the ray of light travels through different mediums and slows down or speeds up. In the case of this stick in the pool, water and air are two different mediums.

When light rays travelling through air enters glass slab ... ray of light falls perpendicularly on the surface of water. It is due to refraction of light that when we hold a stick obliquely ...

But below, when the light also travels through water, the refraction causes the image of the straw to be in a slightly different location. The water also acts as a type of magnifying lens ...