Category: Facts

Ionic Conduction

Science > Chemistry > Electrochemistry > Ionic Conduction The conductance of an ion depends on its size in an aqueous medium or in the solvent. Bigger is the ionic size lesser is its conductance Example: The order of size of hydrated ionic radii of alkali metal cations is as Li+(aq) < Na+(aq) < K+(aq)< Rb+(aq)< Cs+(aq). Hence the ease […]

Physical Chemistry

Introduction to Electrochemistry

Post author By Hemant More
Post date December 18, 2019
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Science > Chemistry > Electrochemistry > Introduction In this article, we shall study the concept of electrochemistry, its cause, and its terminology. Electrochemistry is a branch of chemistry which deals with the interrelationship between chemical energy and electrical energy. The study of electrochemistry is broadly divided into two branches. a) Conversion of chemical energy into […]

Tags Conductance, Conductivity, Electrochemistry, Electrolytic conductors, Electronic conductors, Oxidant, Oxidation, Oxidizing agent, Redox reaction, Reducing agent, Reductant, Reduction, Resistance, Resistivity, Specific conductance, Specific resistance

Human Biology

White Blood Corpuscles (Leucocytes)

Post author By Hemant More
Post date December 18, 2019
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In this article, we are going to study another important component of blood plasma i.e. White blood corpuscles, their types, structures, and functions. They are colourless, nucleated, amoeboid (irregular shape) and phagocytic cells larger than RBC’s. Their size ranges from 12 μm to 20 μm. They have mitochondria, Endoplasmic reticulum, Golgi complex, ribosomes, and centrioles. […]

Physics

Numerical Problems: Circular Motion

Post author By Hemant More
Post date December 2, 2019
3 Comments on Numerical Problems: Circular Motion

Science > Physics > Circular Motion > Numerical Problems: Circular Motion For uniform circular motion Angular speed ω, Linear speed t, kinetic energy, Angular momentum (L) are constant. The angular acceleration α and the tangential acceleration aT are zero. Problems Based on Hands of Clock: The second hand of a clock takes 60 seconds to […]

Tags Angular acceleration, Angular displacement, Angular velocity, Circular motion, Period, Tangential velocity, UCM, Uniform circular motion

Physics

Numerical Problems on S.H.M. – 02

Post author By Hemant More
Post date November 30, 2019
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Science > Physics > Oscillations: Simple Harmonic Motion > Numerical Problems on Maximum Velocity and Maximum Acceleration. Example – 1: a particle executing simple harmonic motion has a period of 6 s and its maximum velocity during oscillations is 6.28 cm/s. Find the time taken by it to describe a distance of 3 cm from […]

Physics

Numerical Problems on S.H.M.- 01

Post author By Hemant More
Post date November 30, 2019
2 Comments on Numerical Problems on S.H.M.- 01

Science > Physics > Oscillations: Simple Harmonic Motion > Numerical Problems on Displacement, Velocity, and Acceleration of Particle Performing S.H.M. in this article, we shall study to calculate the initial phase, displacement, velocity, and acceleration of a body performing S.H.M. Example – 1: A particle performs a linear S.H.M along a path 10 cm long. […]

Physics

Simple Harmonic Motion

Science > Physics > Oscillations: Simple Harmonic Motion > Simple Harmonic Motion In this article, we shall study, the concept of linear simple harmonic motion (S.H.M.) and derive expressions for displacement, velocity, acceleration, and period of n object performing the linear simple harmonic motion. Linear simple harmonic motion is defined as the motion of a […]

Physics

Introduction to Oscillations

Post author By Hemant More
Post date November 29, 2019
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Science > Physics > Oscillations: Simple Harmonic Motion > Introduction In this article, we shall study the concept, oscillation, oscillatory motion, and simple harmonic motion. Oscillatory Motion: A to and fro periodic motion of a body along a definite path is called oscillatory motion. e.g. the motion of heavy bob of a pendulum, the motion […]

Tags Amplitude, Displacement, Extreme position, Fourier theorem, Frequency of oscillation, Harmonic oscillations, Mean position, Non harmonic oscillations, Oscillation, Oscillatory motion, Period of oscillation, Periodic function, Periodic motion, S.H.M., Simple harmonic motion, Simple pendulum

General Biology

Three Domains of Life

Science > Biology > General Biology > Diversity of Living Organisms > Three Domains of Life Prior to 1969 organisms were classified into two kingdoms: the Plant Kingdom and the Animal Kingdom and on the basis of a cell, organisms were classified into two categories Prokaryotae or Monera (which comprised bacteria) and Eukaryotae (which comprised animals, plants, fungi, […]

General Biology

Need for Classification of Living Beings

Post author By Hemant More
Post date November 27, 2019
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Science > Biology > General Biology > Diversity of Living Organisms > Need for Classification of Living Beings Scientists have identified and named 1.7 to 1.8 million species of living organisms. Of these, about 1.2 million are animal species while 0.5 million are plant species. The group of insects is the largest group with 1.025 […]