NCERT Solutions for Class 12 Physics Chapter 15 Communication System

Colour of Salts and Their Solutions: In chemistry, salt is defined as a chemical compound that consists of ions, i.e., a positively charged cation and...

Thermodynamic Principles of Metallurgy: Metallurgy is an important process of extraction of metals from their ores, and it is based upon various principles of chemistry....

Protection of Lyophobic Sols and Gold Number: Solutions are of three types based on the particle size. They are the true solution, colloidal solution, and...

Balancing a Chemical Equation: We know that chemical compounds are broken up during a chemical reaction to form new compounds. A chemical reaction follows the...

Selective Discharge of Ions: Electrolysis is a process employed to separate an ionic compound into its ions. The ionic compound is taken in an electrolytic...

Electronic Configurations and Types of Elements: The electronic configuration of atoms, along with the Aufbau (build-up) principle, provide a theoretical foundation for the periodic classification...

Chemical Equivalents: Stoichiometric calculations are extremely important in chemistry because every chemical reaction requires stringent measures of reactants to form the desired number of products....

Heat Capacity, Specific Heat Capacity and Molar Heat Capacity: What would you observe if a swimming pool and a bathtub full of water were both...

Action of Heat on Substances: We must have observed the melting of an ice cube. The ice cubes need not be heated to melt. It...

Redox Reactions and Electrode Processes: We come across many things in our daily life that involve electrochemical reactions directly or indirectly. From mobile phones, flashlights...

Naming of Chemical Compounds: Please pass the \({\rm{\alpha - D}}\)-glucopyranosyl-\(\left( {{\rm{1,}}\,{\rm{2}}} \right){\rm{ - \beta - D}}\)-fructofuranoside!. Confused? It's sugar. We come across so many chemicals...

Dual Behaviour of Electromagnetic Radiation: A blacksmith's horseshoe appears red, whereas a higher-temperature object, such as the sun's surface, appears yellow or white. When a...

Some Important Compounds of Magnesium and Calcium: Magnesium is a shiny grey solid, which is a group \(2\), or alkaline earth metal of the periodic...

Pseudo Halide Ions and Pseudo Halogens: As the name suggests, Pseudo halogens are polyatomic molecules that resemble halogens but are not true halogens. They can...

Preparation of Bases: Chemical compounds are divided into three different types of nature, i.e., acid, base and neutral substances. Bases are chemical substances that are...

Special functions and their graphs: Have you seen a snack vending machine? When you insert a certain amount of money and press the button, a...

Variance and Standard Deviation: In statistics, the two most essential measurements are variance and standard deviation. The main difference between variance and the standard deviation...

Derivatives of Composite and Implicit Functions: Differentiation is the process of finding the derivative, or rate of change, of a function. In general, the derivative of algebraic...

Derivative of functions in parametric forms: We know that chain rule, product rule and quotient rule can be used to calculate the derivatives of standard...

Integration by Partial Fractions: Partial fractions are important in determining the production, distribution, and consumption of commodities and services because they are used to break...

Integration as an Inverse Process of Differentiation: The integration process is widely used for solving problems in several practical and theoretical scenarios to solve problems....

General and Middle terms: The binomial theorem helps us find the power of a binomial without going through the tedious multiplication process. Further, the use...

Introduction to limit of a function and indeterminate forms: The use of limits in calculus is not limited to finding derivatives and integrals; it has...

Validating statements: Sentences that convey a specific opinion, fact, or idea are called statements. They are either true or false truth values, but not both....

Statements: We are familiar with sentences in languages like English. They are sentences that express a certain fact, opinion or idea. They form the basics...

Chemical Analysis of Organic Compounds is a method for determining the formula of a compound, as well as the percentage composition of the elements contained...

Protoplast Culture and Somatic Hybridisation: Have you heard of Pomato? It is a hybrid formed by the hybridisation of potato and tomato, as a result,...