The glow emitted by a substance exposed to external radiation is called A. luminescence. B. bioluminescence. C. fluorescence. D. phosphorescence.

QUESTION POSTED AT 11/12/2019 - 12:17 AM

Answered by admin AT 11/12/2019 - 12:17 AM

when a substance absorbs external radiation in any form and gives of a glow or luminescence it is considered as Fluorescence. 
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