Suppose you are in a dark room. Can you see objects in the room? [3 MARKS]
Each point: 1 Mark
1. We cannot see objects in the dark room without the presence of light or a light emitting object itself.
2. We may see an object only when, the light from an object enters our eyes.
3. The light may have been emitted by the object directly (luminous objects.), or may have been reflected by it (illuminated objects).