Attempt the following question :
Explain the role of light in travelling and interacting with objects to create shadows and enable vision in dark environments, with appropriate examples.
Light travels in straight lines, which is known as of light. When light falls on objects, it can be , absorbed, or pass through them depending on the type of material. Shadows are formed when an block the path of light. The area where light cannot reach appears dark and leads to .
We are able to see objects because light reflects from the surface of objects and enters our eyes. In the dark, objects are not visible because there is no . When a torch or lamp is used, objects become visible.