Motion is when an object changes its position with respect to its surroundings with time. If the object does not change its position with respect to its surroundings...
The units which are independent of each other are known as Fundamental Units. Derived Units are derived from Fundamental Units. For example, meter is a fundamental unit of...
When a beam of white light is passed through a prism, white light splits up into different colours. Consequently a coloured pattern is obtained on the screen. This...
Our eyeball is nearly spherical with white outer layer called the sclera. Here is a short description of how our eye works. Working of Human Eye The light...
Heat energy radiated by the earth changes the density of the atmospheric layers continuously. This changing density of the air layers near the ground affects its refractive index....
The image formed by the actual intersection of refracted rays through a lens is called the real image. The real images can be caught on the screen and...
A lens is a thin piece of a transparent material bounded by two spherical surfaces or by one spherical and other plane surface. The width or diameter of...
Humidity is the amount of water vapour present in atmosphere. The amount of water vapour in atmosphere changes with time and weather. The air containing water vapour is...
