Light Is a form of energy. Light is needed to see things around us. We are to able see the beautiful world around us because of light. We can read a book, see pictures in a marazine, and watch television and movies due to the existence of light. And it is light which makes us see our im…

There are advantage of having two eyes instead of one. Some of these are given below: 1. Having Two Eyes Gives a Wider Field of View. A human being has a horizontal field of view of about 150° with one eye open, the field of view becomes 180°. Thus, having two eyes gives a wider field o…

A normal eye can see the distant objects as well as the nearby objt clearly.We will now discuss how the eye is able to focus the objects lying at various distances. An eye 👀 focus the image of the distance objects as well as the nearby objects on its retina by changing the focal length…

' Geo' means 'earth' and 'thermal' means ' heat'. Thus, geothermal energy is the heat energy from hot rocks present inside t earth. This heat can be used as a source of energy to produce electricity. Please note that geothermal is one of t few sources of …

The retina of our eye has a large number of light- sensitive cells. There are two kinds of light- sensitive cells on retina: rods and cones. (1). Rods are the rod- shaped in the retina of an eye which are sensitive to dim light. Rods are the most important for vision in dim light (as du…