Ncert notes and solution

THE PHYSICS CAFE                                                                                         CHAPTER THIRTEEN – MAGNETIC EFFECTS OF ELECTRIC CURRENT   13.01 Magnet, Magnetic materials, Magnetism, Magnetic field and Magnetic field lines   Magnet: If an object can attract iron, steel, cobalt and nickel, then the object is called Magnet Properties of magnet A magnet always has two poles; even you break, many times it will always acquire two poles. Monopole doesn’t exist. One pole is called north, while other is called south A mag...

THE PHYSICS CAFE                                                                                       CHAPTER TEN - LIGHT - REFLECTION AND REFRACTION   1.20 Sign Convention for Spherical Lens                                                                   ...

THE PHYSICS CAFE                                                                                         CHAPTER TEN - LIGHT - REFLECTION AND REFRACTION   1.18 Image Formation in Concave and Convex Lens**   Rules for Image Formation in both Concave and Convex Lens:   Always place the object left side of lens.   Take two light rays from the head of object. One parallel to principal axis and second incident at optical centre.   Incident light ray parallel to principal axis will always pass through focus.   ...

THE PHYSICS CAFE                                                                                         CHAPTER TEN - LIGHT - REFLECTION AND REFRACTION   1.16 Spherical Lens and their Identification and Related terms**                                         Spherical Lens: A curved and smooth piece of glass whose surfaces are curved. These are called curved lens due to their shape is...