is a mirrors surface transparent translucent or opaque how do you know

Question

wolfe8 · Answer

If it's translucent you will be able to see partially through it. 
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anonymous · Answer

But its surface is made of glass?

wolfe8 · Answer

True, so if the question wants to know what glass is, it should ask for glass and nor mirror. A mirror reflects light fully, which means it is opaque. http://en.wikipedia.org/wiki/Opacity_(optics)

anonymous · Answer

It should ask for entire mirror and not the surface of a mirror. Or perhaps "mirrored surface"

wolfe8 · Answer

Agreed. This question is a bit confusing. But I think we generally take 'mirror' as the whole thing.