Question

what is meant by luminous and non luminous flames ?
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Answer 1

Answer:

giving off light; bright or shining.  = luminous

Not capable of producing light, but can be capable of reflecting light from another source. = non-luminous

Answer 2

Answer:

hey mate here is your answer:

Explanation:

A blue colored flame which produces very little light is called non luminous flame. In other words when a fuel undergoes complete combustion it is non luminous flame. A yellow flame which produces heat and light is called luminous flame.In this the fuel undergoes partial combustion.

Hope it will help you...