Question

How we are able to see a table or chair when they are not emitting light? Why are we not able to see them in complete darkness?

Answer 1

Step 1: Explanation for a table or chair is visible when they are not emitting light

1. When the light falls on any object it reflects light that light makes an object visible.
2. The table or chair is visible because they reflect light that comes from a luminous object like a sun, bulb, etc.

Step 2: Explanation for a table or chair is not visible in complete darkness

1. In the complete darkness, no light falls on the table or chair. So there is no light to reflect.
2. Thus our eyes do not catch any light. For this reason, the table or chair is invisible in complete darkness.