- Wind flows from area of high pressure to low pressure.
- Hydrogen bomb is an example “Nuclear fission”.
- Atomic bomb is an example of “Controlled nuclear fission”.
- The rate of change of angular momentum of a body is the applied torque.
- A lens which is thicker at the center and thinner at the edges is called convex lens.
- A lens which is thinner at the center and thicker at the edge is called concave lens.
- The diameter of a lens is called “Aperture”.
- Rainbow is produced by the “Reflection of light” through rain drop.
- Light can pass through objects which are transparent.
- Voltage can be calculated by formula V=IR