Topic Content:
- Meaning of Radiation
- Infrared Radiation AbsorptionAbsorption is the movement of digested food molecules from the digestive system into the blood (glucose and amino acids) and lymph (fatty acids and glycerol). The small intestine absorbs most of... More
- Demonstration of Rate of Radiation by Different Surfaces
- Applications of Radiation
Radiation is the process of heat transfer by which heat energyEnergy is the ability to do work. Energy exists in several forms such as heat, kinetic or mechanical energy, light, potential energy, and electrical energy. Units of Energy: The SI unit... More is exchanged between two surfaces obeying the law of electromagnetics.
This method of heat transfer does not require any material medium. This heat transfer takes place in the form of electromagnetic waves mainly in the infrared region. It also occurs through a vacuumA vacuum is an area of space containing little or no matter (solids, liquids, and gases). It is a space with nothing in it, not even air. More or any transfer medium by means of photons.
Examples to demonstrate the transfer of heat by radiation
- We feel warmer when we sit near a fire or hot object.
- We feel how when we sit in the sun.
- Slices of bread get heat from the heating coil in a toaster.
Infrared Radiation Absorption:
You are viewing an excerpt of this Topic. Subscribe Now to get Full Access to ALL this Subject's Topics and Quizzes for this Term!
Click on the button "Subscribe Now" below for Full Access!
Subscribe Now
Note: If you have Already Subscribed and you are seeing this message, it means you are logged out. Please Log In using the Login Button Below to Carry on Studying!
Responses