A question was posed where I work today. What's the difference between transparent, translucent and opaque?
Well I got opaque completely wrong, thinking that it meant foggy or misty. Apparently it means no light passes through it or something like that.
Even more troublesome was transparent, especially when someone asked if a mirror was that, transparent. But no, mirrors could be said to be opaque as light doesn't pass through them.
A further slippery scenario given was where a obviously transparent object like a small window can be clearly seen in the opaque mirror. Does the mirror render the reflection of the window opaque as well?
And what about a lamp reflected in a mirror? Can the reflection be classed as a light source and thus make the mirror transparent?
I cannot see clearly and my head hurts!