Notes and Study material for Exams
Carbohydrates (glucose, sucrose and cellulose) Carbohydrates (also called saccharides) are molecular compounds made from just three Elements: carbon, hydrogen and Oxygen. Monosaccharides (e.g. glucose) and disaccharides (e.g. sucrose) are relatively small Molecules. They are often called sugars. Other carbohydrate molecules are very large (polysaccharides such as starch and cellulose). Carbohydrates are: a Source Of Energy for the … Read more
Variance Variance (σ2) in statistics is a measurement of the spread between numbers in a data set. That is, it measures how far each number in the set is from the mean and therefore from every other number in the set. In investing, the variance of the returns among assets in a portfolio is analyzed … Read more
Simple Telescope and astronomical telescope, Construction working, uses, ray diagram Simple telescope A simple working telescope requires nothing more than a pair of lenses mounted in a tube. The lens in front, known as the objective, focuses an image; the lens in back, known as the eyepiece, magnifies the image. Although it may seem like … Read more
Mohandas Karamchand Gandhi was ‘a man of millennium’ who imparts the lesson of truth, Non- violence and peace. The philosophy and ideology is relevant still today.The philosophy of Gandhi was based on truth, sacrifice, non- violence selfless service and cooperation. In modern times, nonviolent methods of action have been a powerful tool for social protest. … Read more
Rotational Motion A rotation is a circular movement of an object around a center (or point) of rotation . A three-dimensional object always rotates around an imaginary line called a rotation axis. If the axis passes through the body’s center of mass, the body is said to rotate upon itself, or spin. A rigid body … Read more
Percentage Percent means for every 100 So, when percent is calculated for any value, it means that we calculate the value for every 100 of the reference value. percent is denoted by the symbol %. For example, x percent is denoted by x% x%=x/100 Example : 25%=25/100=1/4 To express x/y as a percent,we have x/y=(x/y×100)% Example : … Read more
Types of Majority A majority is a group of people that makes up more than half of a total number. In politics, a majority is the group of people who have more than half of the votes in an election. In mathematics, a majority is a number that is greater than half of the total … Read more
Gandhian Principles Mahatma Gandhi was a pioneer of non-violent resistance and civil disobedience, and his principles have had a profound impact on the world. His teachings are based on the idea of satyagraha, or truth force, which he believed was the most powerful weapon for achieving social change. Gandhi’s principles can be divided into four … Read more