(a) Make a labeled diagram of a candle flame.
(b) What makes the middle zone of a candle flame luminous (or light–giving)?

 (a) The labeled diagram of a candle flame is shown below:

(b) In the middle zone, partial combustion of the fuel takes place, so the colour of the flame is yellow and it is a moderately hot part of the flame. It is the luminous part of the flame.

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Updated on: 10-Oct-2022

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