What is Light ?

what are the properties of light

what dose transparent mean ?

transparent-something transparent is clear light that easily passes through it. it is easy to see other things through it

What is light ?

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is visible to the human eye and is responsible for the sense of sight.
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what dose opaque mean ?

things that are opaque are reflecting light for example the color black on clothing is opaque that why when you where it will be hoter
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