Cyclic Quadrilaterals
A cyclic quadrilateral has all four vertices on one circle. Opposite angles are supplementary: A+C=180 deg and B+D=180 deg. Converse (named): if opposite…
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A cyclic quadrilateral has all four vertices on one circle. Opposite angles are supplementary: A+C=180 deg and B+D=180 deg. Converse (named): if opposite…
Logic gates are the building blocks of digital circuits. A logic gate performs a particular logical function. It has two or more logic inputs (LOW or HIGH) and…
Energy in Chemical Reactions: The energy in the form of heat that is either evolved or absorbed as a result of a chemical reaction.
Endosperm feeds the embryo (cereal). Cotyledons in beans. Dormancy: wait. Scarify/cold named as nature cues, not a warehouse process. False fruit (apple) if…
If the centre is known: join OP, draw the circle on OP as diameter, meet the given circle again at T (angle in a semicircle is 90, so OT perp PT). Then PT is…
Diversity Among Fungi: The kingdom fungi are a diverse group comprising of more than 100,000 known species, most of which are terrestrial. In simple…
Role of Database in Data Science: Databases play a crucial role in data science by providing a structured and organized way to store, manage, and retrieve…
Reproduction is the biological process by which organisms produce new individuals of the same species. It ensures the survival and continuation of a…
Bacterial Flagellum: A bacterial flagellum is a fine thread-like outgrowth composed of a single protein called flagellin, arranged in intertwined chains,…
A simple pendulum consists ideally of a point mass suspended by a light inextensible string which performs approximately SHM for small angular displacements.
Rectification is the conversion of alternating current into a unidirectional current. A half-wave rectifier uses one half-cycle of the AC input while…
J-curve then crash, or S to K. r-selected vs K-selected named if the book (many young vs few cared). Human population is a graph in many books; treat people…
Human Insulin: Human Insulin is produced by recombinant DNA technology, which involves the following steps. Insulin Gene: The insulin gene, which…
Data encryption is a process of converting plaintext data into an unreadable format called cipher text using encryption algorithms and keys.
Limiting Reactant: The reactant that is completely consumed in a chemical reaction and limits the amount of product formed. Excess Reactant: The…
The angle between a tangent and a chord equals the angle in the alternate (other) segment of the circle. If the tangent-chord angle is 46 deg, the inscribed…
Applications of momentum conservation include recoil, propulsion, collisions, ball-and-bat interactions, vehicle interactions and fragmentation.
A one-one function has an inverse found by writing y=f(x), interchanging x and y, and solving for y.
UV on Cl2: radicals (named initiation). Heterolytic in SN1 (later) makes a carbocation. Do not write harmful radical-chain processes. Electrophile seeks e-…
A geostationary satellite is a satellite in a circular equatorial orbit that moves in the same rotational direction as Earth and has an orbital period…
A stationary or standing wave is produced when identical waves of the same speed, amplitude and frequency travel in opposite directions and superpose. Its…
A semiconductor has controllable conductivity between conductors and insulators. Silicon and germanium are common examples; doping produces N-type (electron…
Artificial Intelligence (AI) is the branch of computer science that focuses on creating machines and systems capable of performing tasks that normally…
SN1: one species in the slow step (the haloalkane ionises to a carbocation + X-). Then Nu grabs the cation fast. Favoured by tertiary (cation stabilised) and…