Question

What is an incandescent body? Give examples.

Answer 1

Hint:First we will define the incandescent body, its physical structure, working and applications.
We will share some real life examples to better understand the incandescent bodies.
Let’s begin with the definition of incandescent body.

Complete step by step answer:
Incandescent body: The body which emits light when heated to a very high temperature. Incandescence is the emission of electromagnetic radiation (which includes visible light also) from a hot body as a result of its high temperature or glowing due to heat. Incandescent bodies include light bulb, electric stoves.

Terms we must know to understand the incandescent body:
Electricity: A form of energy caused by the presence of electrical charges in matter.
Filament: the light source or part of an incandescent light bulb that is heated until it becomes incandescent.

How the Incandescent body is designed:
Modern incandescent lamps come in a large number of shapes and sizes, but all of them share some basic elements in them. Each is contained by a glass or quartz sphere or envelope. The current enters the lamp through a conductor in an airtight joint or joints. Various changes have been made in the species of incandescent lamps to increase the efficiency of manufacturing.
Now, days filaments are made up of coiled tungsten, a high - resistance material that can be drawn into a wire. Tungsten has both high melting point and high vapour pressure.

Note:
Application of incandescent bodies is: used in glow discharge lamps, neon lamps, fluorescent lamps, used in spot lights, flood lights, car headlights ,over head down lights. White hot iron in a forge, red hot lava flowing down a volcano, and the red burners on a stove are examples of incandescence.