Notes and Study material for Exams
Photovoltaic Electricity Photovoltaic (PV) electricity is a type of solar energy that converts sunlight into electricity using semiconductors. PV cells are made of materials that allow electricity to flow when light hits them. When sunlight hits a PV cell, it knocks electrons loose from their atoms. These free electrons flow through the cell, creating an … Read more
INFRASTRUCTURE for mining, transportation, and combustion. Significant contributor to Climate change due to carbon dioxide emissions. Versatile fuel for power generation and various industrial processes. Mining can cause environmental damage (habitat destruction, Water Pollution). Technology exists to reduce emissions, but it’s often costly. Health risks associated with air pollution (respiratory problems, cardiovascular disease). Advantages and … Read more
Fermentation: Glucose is fermented by bacteria to produce lactic acid. Lactic Acid Purification: Lactic acid is purified and concentrated. Polymerization: Lactic acid monomers are polymerized to form PLA. Biodegradation of PLA PLA degrades through a process called hydrolysis, where water Molecules break down the polymer chains. This process is accelerated in the presence of moisture, … Read more
The Poverty Gap: A Measure of Deprivation and a Guide to Progress The poverty gap, a key indicator of poverty severity, quantifies the extent to which individuals or households fall below the poverty line. It measures the collective shortfall in income needed to lift everyone living in poverty to the poverty threshold. This article delves … Read more
Delving into the Difference: Delhi vs. New Delhi The names Delhi and New Delhi are often used interchangeably, leading to confusion for many. While they are closely intertwined, they are distinct entities with unique histories, administrative structures, and geographical boundaries. This article aims to shed light on the key differences between these two important locations … Read more
(a)LED: Led is Light emitting diode. It is a PN Junction Diode, which emits light when gets activated. When a suitable energy is applied , electron combines with the electron holes within the device releasing energy in the form of photons.LED lamps have a lifespan and electrical efficiency which are several times longer than incandescent … Read more
Reformers like Raja Rammohan Roy, Ishwarchandra Vidyasagar, Swami Dayanand Saraswati, Jyotiba Phule, Sir Syed Ahmed Khan and Pandita Ramabai understood that ignorance and backwardness in the Society was responsible for hindering its progress and development. They studied the religious scriptures and criticized the prevalent religious and social practices. According to them, society should be based … Read more
Habeas Corpus: A Cornerstone of Liberty Habeas corpus, a Latin phrase meaning “you may have the body,” is a fundamental legal principle that protects individuals from unlawful detention. It is a powerful legal tool that allows a person to challenge the legality of their imprisonment or detention before a court. This principle, deeply rooted in … Read more