Single Choice

Which of the following process does not occur through convection:

ABoiling of water
BLand breeze and Sea breeze
CCirculation of air around furnace
DHeating of glass bulb through filament
Correct Answer

Solution

Bulb heats up by radiation process.
Any process in which a significant part of heat transfer occurs through the bulk motion of the fluid medium involves convection. In the first three options, this is the case but in case of a bulb, heat is transferred from the filament to the glass via low density inert gas and the distance across which heat is transferred is also small, so radiation plays a significant role here and convection is absent.

SIMILAR QUESTIONS

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