Question

1) Why is it that I can see the floor on which the shadow of the table is falling but I can see it ? ​

Answer 1

Shadows are cast on mirror surfaces. But a mirror only reflects light in one direction, so to see the shadow you have to position yourself at a very special place, namely the place where you see the light source in the mirror.

Answer 2

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It is this scattered sunlight which enters the room and helps us to see the things lying in the room which are not in direct sunlight. We can see the table because it reflects the light falling on it in all directions. And when this reflected light coming from the table enters our eyes, we are able to see the table.