Question

is a: window the sun ,a pencil a lightbulb a firefly a smartphone and a piece of paper luminous or not

Answer 1

Explanation:

Translucent materials are those which let some light to pass through them, the light rays get scatter in all directions, so cannot see clearly through them. ... Luminous objects are those which emit light on their own. Example:-Sun, firefly. Non-luminous objects are those which reflect the light from luminous bodies. ·