can anyone show a 2 dimensional object which should be visible and should be touch it. give me best example for that object which one axis is zero?
Try your shadow. Really nothing else works unless you use a picture of objects. Not the paper the picture is on.
Every surface serves your need. We touch only surfaces - 2nd D objects. Even our eyesight wors only in 2 D - 3D is only brain interpretaton. Informational organization on retina is just 2D. The surface of a computer or TV set screen is just 2D, no more. We acually live in the 2D world arranged in the 3 D space.
I suppose this depends on your philosophy. An engineer would be satisfied calling something like paper two-dimensional as long as it can be accurately modeled as a 2D object. If you are pickier about the details, you will struggle to find a 2D object in a 3D world. I like the shadow answer.
The wave front of transverse electromagnetic wave is a 2 dimensional object or surface . Take any decent book on electromagnetic theory. You can feel it directly when you take ,for instance ,a sunbath.
Dear Sai Suresh,
I don’t think one can espect objects as flat as in Faltland (https://en.wikipedia.org/wiki/Flatland) in our world.
However the following can be examples of quite thin films with visible aspects:
http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/oilfilm.html
http://soapbubble.wikia.com/wiki/Color_and_Film_Thickness
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