MPPSC MAINS 2019 Paper-III

Points to Remember: Micelles are spherical structures formed by amphipathic molecules. Formation is driven by hydrophobic interactions and entropy. Micelles have diverse applications in various fields. Introduction: Micelles are aggregates of surfactant molecules dispersed in a liquid colloid. A surfactant, or surface active agent, is a molecule possessing both hydrophilic (water-loving) and hydrophobic (water-fearing) parts. … Read more

Points to Remember: Nuclear fusion Hydrogen isotopes Helium production Energy release High temperature and pressure Introduction: The Sun, the star at the center of our solar system, is a colossal powerhouse providing Earth with the light and heat necessary for life. Its immense energy output is not generated through chemical reactions like burning, but through … Read more

Points to Remember: Definition of plagiarism Types of plagiarism Consequences of plagiarism How to avoid plagiarism Ethical implications Introduction: Plagiarism, derived from the Latin word “plagiarius” meaning “kidnapper,” is the representation of another author’s language, thoughts, ideas, or expressions as one’s own original work. It’s a serious academic and professional offense, violating intellectual property rights … Read more

Points to Remember: E-waste is discarded electronic devices. Management involves collection, recycling, and disposal. Environmental and health impacts are significant. Global and national regulations are crucial. Sustainable practices are essential. Introduction: E-waste management refers to the collection, transportation, processing, recycling, and disposal of discarded electronic devices and their components. These devices include computers, televisions, mobile … Read more

Points to Remember: This is a mathematical word problem requiring the calculation of the original price given a discount percentage and the amount saved. The core concept is understanding the relationship between the discount percentage, the amount saved, and the original price. Introduction: This question is a simple percentage problem. It tests the ability to … Read more

Points to Remember: Discovery of the Raman Effect. Establishment of the Indian Institute of Science (IISc). Promotion of scientific research in India. Nobel Prize in Physics. Contributions to optics and acoustics. Introduction: Sir Chandrasekhara Venkata Raman (1888-1970), often referred to as C.V. Raman, was a towering figure in the world of physics. His groundbreaking work … Read more

Points to Remember: Geothermal energy is heat from the Earth. It’s a renewable energy source. It can be used for electricity generation and direct heating. There are environmental considerations associated with geothermal energy. Introduction: Geothermal energy, derived from the Greek words “geo” (Earth) and “therme” (heat), refers to the heat stored within the Earth. This … Read more

Points to Remember: Mass is the amount of matter in an object. Weight is the force of gravity acting on an object’s mass. The acceleration due to gravity on Earth is approximately 9.8 m/s². Weight is calculated as mass multiplied by acceleration due to gravity (W = mg). Introduction: This question requires a factual approach … Read more

Points to Remember: The formula for the circumference of a circle is C = 2πr, where ‘r’ is the radius. The formula for the area of a circle is A = πr², where ‘r’ is the radius. π (pi) is approximately 3.14159. Introduction: This question requires a factual and analytical approach to determine the area … Read more