Question

how will you differentiate between a luminous and non luminous flame​

Answer 1

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While a luminous flame burns yellow, a non-luminous flame burns blue; this is because of the difference in available levels of oxygen. Luminous flames have limited access to oxygen, while non-luminous flames have unlimited access to oxygen.

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Answer 2

LUMINOUS FLAME :

Yellow flame is also called as Luminous flame. As incomplete combustion takes place in this zone, this occurs when the availability of oxygen is very less.

NON-LUMINOUS FLAME:

A blue flame is also called as non luminous flame. As complete combustion takes place in this zone , thus emitting very little light.

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