What is luminouse and non-luminouse?

Answer 1

i think luminous means when something gives off light and non-luminous means when something does not give off light.

Answer 2

Luminous objects emit light on their own, such as the sun or a light bulb. Non-luminous objects do not emit light but can be seen by reflecting light from luminous sources, like the moon or a book.

Answer 3

nonluminous luminous