A rainbow looks like an object hanging in the sky, but it isn't one. It's an optical effect, and it exists only in the eyes ...

At night, are you opening your science workbook and staring at the drawing problems for "light reflection and ...

Refraction is explained by looking into a pool and seeing Snell's law in action. We also explore the concepts of total internal reflection and formation of the critical angle. Plan and carry out ...

At the interface between two facets of an artificial crystal, sound waves can be transmitted in the opposite direction to that expected, and undergo no reflection. Such wave behaviour could have many ...