## LENS FORMULA: HOW TO DRAW A REFLECTION DIAGRAM

LENS FORMULA INTRODUCTION It is a transparent refracting medium bounded by  two or at least one spherically curved surface in lens formula.  What is lens using in various device :In a microscope or in a telescope convex lenses are used to see distant or much closer objects. What is the type: Convex and Concave lens. …

## SIMPLIFICATION: HOW TO SOLVE SIMPLIFICATION SUM

SIMPLIFICATION It usually includes simpler expression of mathematical problems following the rule BODMAS { B=bracket O= of; D= division; M= multiplication; A= addition; S= subtraction). It comprises square root, cube root, surds and indices, percentage.  SIMPLIFICATION Answers are given just after each question, explanations are …

## STUDY OF TISSUE: HOW TO DIFFER CELL WITH TISSUE

STUDY OF TISSUE INTRODUCTION:   A tissue is a group of cells which have a common origin, similar shape, size and structure and perform the same function. Cells in a tissue are usually held together by a cementing substance and form a tissue system. ( what is tissue) Different types of tissues are : Tissue …

## FORCE UNIT: EASY EXPLANATION & THEORY OF FORCE

FORCE UNIT          TERMS TO BE REMEMBERED:-  What is a force: Force is defined as an external cause which changes or tends to change the state of rest or uniform motion of a body in a straight line in force unit. …

## GENETIC DISORDERS PDF: HOW TO EXPLAIN GENETIC DISORDER

GENETIC DISORDERS PDF INTRODUCTION: (genetic disorder) .Determination of sex of an individual at pre-natal stage (before birth or during pregnancy) is called sex-determination. In a number of organisms, one specific part of a chromosome plays a significant role in the determination of sex of the organism. These chromosomes are named as sex-chromosome or allosome or …

## INORGANIC ACID: HOW TO EXPLAIN PREPARATION & PROPERTIES

INORGANIC ACID INTRODUCTION IN INORGANIC ACID Three main inorganic acid or mineral acids are HYDROCHORIC ACID, NITRIC ACIDS, SULPHURIC ACID. Acids were derived from the latin word meaning sour , since they are associated with sour taste of various fruits.                           DISCOVERY OF INORGANIC ACID HYDROCHLORIC ACID NITRIC ACID SULPHURIC ACID ·        A solution of hydrogen chloride gas …

## CORONA CASES IN INDIA: EASY EXPLANATION OF CORONAVIRUS

CORONA CASES IN INDIA INTRODUCTION During the world-wide lockdown condition due to Coronavirus infection, I am here to discuss about aspect of Corona. What is Coronavirus? It is a group of viruses that causes respiratory problems in animals and birds. Some viruses are not so dangerous, but due to biological reasons, some family members become …

## ANGLE SUM PROPERTY: HOW TO DESCRIBE ITS OF TRIANGLE

ANGLE SUM PROPERTY INTRODUCTION:  A plane figure formed by three line segments that are non-parallel to each other is called the triangle.(ANGLE SUM PROPERTY) If A,B,C  are three non-collinear points in the plane of the paper, then the figure made up by the three line segments AB, BC and CA is called a triangle with …

## ATOMIC STRUCTURE PDF: HOW TO DESCRIBE ITS

ATOMIC STRUCTURE PDF INTRODUCTION:  (BASIC ATOMIC STRUCTURE) All matters are in nature is made up of only a few elements. The elements exist as atoms and/or molecules. Molecules of an atom are made up of atoms of the same type. Compounds contain two or more elements. Thus, the molecules of compounds contain atoms of different …

Scroll to Top