Why to Learn DBMS? Traditionally, data was organized in file formats. DBMS was a new concept then, and all the research was done to make it overcome the deficiencies in traditional style of data management. A modern DBMS has the following characteristics − Real-world entity− A modern DBMS is more realistic and uses real-world entities […]

INTRODUCTION TO LINUX SHELL AND SHELL SCRIPTING   If you are using any major operating system, you are indirectly interacting to shell. If you are running Ubuntu, Linux Mint or any other Linux distribution, you are interacting to shell every time you use terminal. In this article I will discuss about linux shells and shell scripting […]

Asexual Reproduction in Algae Reproduction in algae occurs by all the three methods Vegetative Reproduction Asexual Reproduction Sexual Reproduction 1) Vegetative Reproduction Vegetative methods of reproduction occurs through binary fission ( in unicellular forms), fragmentation ( in filamentous forms), or by formation of akinetes, hormogonia, tubers or by the formation of adventitious thalli. 2)Asexual Reproduction Asexual […]

Nuclear Fission It is a process of splitting of a heavy nucleus into 2 nuclei of comparable masses with release of huge amount of energy In 1938, Hahn and Strassmans discovered that when 92U235  is bombarded with thermal neutrons (neutrons having energy 0.025 eV), it splits of into 56Ba141 & 36Kr92  with emission of three […]

LIFE AND IT’S EVOLUTION Planet Earth is home to millions of species of life, including ourselves. It is unique in the Solar System because it is the only planet which is able to support a great variety of life: from basic living micro-organisms to highly sophisticated and intelligent human beings. The planet provides the necessary […]

Lanthanide Contraction Atomic Size, Ionic radii:- In the Lanthanide series, as we move across from La to Lu, there is a regular decrease In the size of atoms with increase in atomic no. The trend continues upto Lu. Thus, La has the largest while Lu has the smallest size. The regular decrease in atomic size […]

Physical properties of periodic table:- What is Atomic Size? Atomic size is the distance between the centre of the nucleus of an atom and its outermost shell. What is Atomic Radius? An atomic radius is defined as the “shortest distance between the atom’s nuclei and the outermost shell of the atom. “ In general, the atomic radius decreases […]

Werner’s Theory Werners theory of coordination compounds, isomers in coordination compounds, primary valence, secondary valence, etc. Werner, a well-known scientist, proposed his theory of coordination compounds in 1823, which describes the formation and structure of complex compounds and was later named Werner’s Theory of Coordinate Compounds. He was given the Nobel Prize for this theory, […]

Introduction:- • The process of formation of male gamete i.e sperm is called spermatogenesis. • It occurs in the seminiferous tubules of testes. • The germinal epithelium of seminiferous tubules largely consists of cuboidal primary germ cell which give rise to sperm by the process of spermatogenesis. • It occurs in two successive steps such […]

HYSTERESIS CURVE:     The ferromagnetic materials show a certain relation between intensity of magnetization and strength of magnetic field. This property is called hysteresis. FEATURES: When a substance is slowly magnetized the intensity of magnetization B increases with magnetic field intensity H. OA path is shown. At point ‘A’, magnetization becomes constant. This point is […]