The fact that a small source of light casts a sharp shadow of an opaque object indicates that light travels in straight lines. This phenomenon is usually represented as a ray of light, and the study of such properties helps ...

Some common optical phenomena include image formation by mirrors, the twinkling of stars, the beautiful colors of a rainbow, and the bending of light by a medium.

We can see through transparent media because light is transmitted through them. When light passes through a transparent medium, it continues its path without significant absorption or reflection, allowing us to see objects on the other side.

Sunlight helps us see objects during the day as objects reflect the sunlight that falls on them. The reflected light, when received by our eyes, allows us to perceive and identify the objects in our surroundings.

The visibility of objects is facilitated by the reflection of light. In a dark room, objects are not visible, but when the room is illuminated, the objects become visible as they reflect the light that falls on them.