(Jan 3, 2015 07:31 AM)priyanka11 Wrote: CONDUCT THIS SIMPLE TEST:
Place the tip of your fingernail against the reflective surface and if there is a GAP between your fingernail and the image of the nail, then it is a GENUINE mirror. However, if your fingernail DIRECTLY TOUCHES the image of your nail, then BEWARE, IT IS A 2-WAY MIRROR! (There may be someone seeing you from the other side).
So remember, every time you see a mirror, do the “fingernail test.” It doesn’t cost you anything. It is simple to do. This is a really good thing to do. The reason there is a gap on a real mirror, is because the silver is on the back of the mirror UNDER the glass.
Whereas with a two-way mirror, the silver is on the surface. Keep it in mind! Make sure and check every time you enter in hotel rooms. Share this with your sisters, wife, daughters, friends, colleagues, etc. Pass this message to all Ur friends in the Contacts.
This makes sense. Another method could be to knock on the glass as the glass like knocking on a wall to find a hidden entrance. One-way mirror should in theory make a "hollow" sound. Though never tried it.