MPPSC MAINS 2020 Paper-III

Points to Remember: A compiler’s primary function is translating high-level programming languages into low-level machine code. Compilers enhance code efficiency and portability. Different compilers exist for various programming languages and target architectures. The compilation process involves several stages, including lexical analysis, syntax analysis, semantic analysis, intermediate code generation, optimization, and code generation. Introduction: A compiler … Read more

Points to Remember: Hydrogen bonding involves a hydrogen atom bonded to a highly electronegative atom (like O, N, or F) interacting with another electronegative atom. The strength of hydrogen bonding depends on the electronegativity of the atoms involved and the geometry of the molecule. P-nitrophenol and O-nitrophenol are isomers, differing only in the position of … Read more

Points to Remember: Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. It’s driven by solar energy. It plays a crucial role in plant water balance and nutrient uptake. Several factors influence the rate of transpiration. Introduction: Transpiration, derived from the Latin … Read more

Points to Remember: Haemoglobin’s structure and components. Haemoglobin’s function in oxygen transport. Haemoglobin’s role in carbon dioxide transport. Conditions related to haemoglobin abnormalities. Introduction: Haemoglobin is a crucial metalloprotein found in red blood cells (erythrocytes) that plays a vital role in oxygen transport throughout the body. Its presence gives blood its characteristic red color. Essentially, … Read more

Points to Remember: Non-metals generally lack luster. Some non-metals exhibit properties atypical of their group. Iodine is a notable exception. Introduction: Non-metals are elements that typically lack the characteristic properties of metals, such as conductivity, malleability, and ductility. They are generally brittle, poor conductors of heat and electricity, and lack the metallic sheen or luster. … Read more

Points to Remember: Definition of a Lewis acid. Identification of electron-deficient species. Ability to accept electron pairs. Introduction: A Lewis acid is defined as a chemical species that accepts an electron pair. This contrasts with a Brønsted-Lowry acid, which donates a proton (H⁺). Lewis acids are often electron-deficient species, possessing vacant orbitals that can accommodate … Read more

Points to Remember: Newton’s Second Law of Motion (F = ma) Net force calculation Units of measurement (Newtons, kilograms, meters per second squared) Introduction: This question requires a factual and analytical approach to determine the acceleration of a sledge given its mass, the pulling force, and the frictional force acting upon it. The core principle … Read more

Points to Remember: Definition of terminal velocity Factors affecting terminal velocity Examples of terminal velocity in action Applications of understanding terminal velocity Introduction: Terminal velocity is a crucial concept in physics, particularly in fluid dynamics. It refers to the constant speed that a freely falling object eventually reaches when the resistance of the medium through … Read more

Points to Remember: Light’s behavior when transitioning between mediums is governed by the wave nature of light and the properties of the materials. Frequency remains constant; wavelength and speed change. Refractive index plays a crucial role in determining the changes. Introduction: When light travels from one medium (e.g., air) to another (e.g., water or glass), … Read more