The following Topics and Sub-Topics are covered in this chapter and are available on MSVgo:
When you look around yourself, do you see the colourful surroundings that bring you joy? You must have seen many light-emitting devices at your home, like LED bulbs, tube lights and more. So what is light, and how are you able to see things in the light? These questions would be answered in this coming article which talks about light, its properties and some important exam questions based on this chapter.Do you know that the earth is a huge magnet with poles on either side of its diameter? You must have heard that magnets attract iron objects and can also repel other magnets. So how is this possible that a physical substance is capable of attracting and holding other objects with it? What is the history of magnetism? We will answer all these questions in the coming blog.