The gravity of the earth attracts every object towards its centre. When an object is dropped from a certain height, it begins to fall towards... View Article
Solution: (a) AB is the line segment and point P lies on it. (b)Â XY and PQ are two lines and the point M intersects. (c)Â Line l Contains... View Article
Protoplast is defined as the plasmalemma which is present in every cellulosic cell wall of the plant cell. Protoplasts are the isolated cells... View Article
This is the last phase in karyokinesis. Following this, the nuclear membrane and nucleolus reappear and the chromosomes become thinner and longer... View Article
The separation process used for separating husk from grains is by winnowing and handpicking. Various methods of separating the components from... View Article
A globe is a three-dimensional sphere, that is used for representing the whole earth. It helps in searching for different countries and oceans.... View Article
Fog is a visible aerosol consisting of tiny water droplets or ice crystals that remain near the surface of the earth. Fog forms when the air... View Article
The shape of the Earth is geoid. Earth looks like a blue marble with white swirls and areas of brown, yellow, green and white from space. The... View Article
The haemocytometer is a device used to count red blood cells. It consists of a thick glass microscopic slide with a rectangular indentation which... View Article
Energy is an important factor in our daily lives. A good source of energy is that which is competent in providing sufficient, and safe energy at... View Article
Infinity mirror is when two or more parallel mirrors create smaller and smaller reflections that appear to recede to infinity. The principle... View Article
One kilowatt-hour is equal to the work done or energy consumed when a device of power 1 kW is used for 1 hour. A measure of electrical energy... View Article