Question

What are luminous amd non - luminous zones of a candle????

Answer 1

The outermost zone :- The outermost zone also known as non - luminous zone is the zone of complete combustion . The ample presence of oxygen aids in complete combustion . It is the hottest zone of candle flame and does not produce much light . It is blue in colour .

Answer 2

Hey friend , here is your answer

◆ NON LUMINOUS ZONE

●It is the hottest zone of the candle .
●It is the outermost part of candle.
●Complete combustion of carbon particles in wax vapour take place.
●Since carbon dioxide gas does not impart any light to the flame,hence it is non luminous zone
● The flame appears blue.

◆Luminous zone

●The flame is yellow in color.
●Incomplete combustion of wax vapour take place due to limited supply of oxygen.
●Carbon particles are not burn are present in this zone.
●These particles produces smoke(soot)
●This region is not very hot

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