Introduces the concept of light through the character Ray, a personification of light beams. Ray explains the origins of light, its crucial role in visibility, and how it interacts with various ...

CBSE Class 10 Science marks distribution 2026 explained with chapter-wise weightage for Biology, Chemistry, and Physics. Know ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...