OUR SOLAR SYSTEM
SUN:- ……
SUN:- ……
SOLAR SYSTEM All of us have studied about the Sun, Planets and the natural satellites. Have you ever noted stars in the night sky?……
It is an optical instrument with which is used to form a real image of an object on a screen.It is consist of a lens or lens system……
……
First of all Greek philosophers thought that matter is made up of indivisible particles which cannot be further sub-devided. Democritus……
THE EARTH Our earth is 5,000 million years aged. The diameter of the earth is 12,756 km, while the expanse around the earth beside……