Question

How can we see non-luminous objects even when they do not produce their own
light?​

Answer 1

Answer:

A candela is the unit of measurement for luminosity. Objects that do not emit their own light are non-luminous, and we are only able to see them when the light from a luminous object reflects off of the non-luminous object and into our eyes.

Answer 2

Their just non luminous no body said that they are invincible right...... they can be seen, touched but just no light and the opposite way for luminous objects eg of non luminous: pouch,etc eg of luminous: bulbs,etc