Which one of the following processes is not a part of long-wave radiation?
[amp_mcq option1=”Conduction” option2=”Scattering” option3=”Convection” option4=”Radiation” correct=”option2″]
This question was previously asked in
UPSC CAPF – 2018
– **Radiation:** Emission and absorption of long-wave electromagnetic waves.
– **Conduction:** Heat transfer through direct contact, significant at the Earth-atmosphere interface.
– **Convection:** Heat transfer through the movement of air or water, driven by temperature differences resulting from radiative heating/cooling.
Scattering is a process where radiation is deflected in different directions by particles or molecules. While radiation of all wavelengths can be scattered, scattering is a dominant process affecting the path of incoming *short-wave* solar radiation (e.g., causing the blue sky). It is not a primary mechanism for the *transfer* or *distribution* of the heat energy associated with outgoing *long-wave* radiation in the same way as conduction, convection, and emission/absorption of radiation are.