Following is the labelled diagram of a candle flame:
- Wick: The part of the candle that holds the fuel (wax) and allows it to burn.
- Outer luminous zone: The yellowish, luminous region of the flame, where the combustion is incomplete. It is cooler compared to the inner zone.
- Inner non-luminous zone: The blue, hottest part of the flame where combustion is complete. This part is not visible and has a higher temperature than the outer zone.
This simple diagram shows the basic structure of a candle flame with its various zones.
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