The change in direction of a beam of light as it travels from one material to another is called refraction. The normal is a construction line drawn at right angles to the surface of the glass block.

The Central Board of Secondary Education (CBSE) has recently released a set of competency-based questions for Chapter 9, ...

To investigate the reflection of light by different types of surface, and the refraction of light by different substances. Remove the block. Join the crosses to show the paths of the light rays ...

A rare atmospheric optical phenomenon called a "glory" was caught on video during descent on a Manchester, New ...

These questions challenge students to go beyond rote learning, requiring an understanding of real-world applications of light reflection and refraction principles. Competency-based questions allow ...