What Is the Opposite of a Shadow?

A shadow is when light can't reach a part of something, like when you block the sun with your hand. The opposite, an anti-shadow, happens when no light reaches somewhere at all, like being in a room where the lights are off and no light comes through the walls.

Take the quiz →

Examples

A shadow is when you block the sun’s light, like your hand in front of a lamp. An anti-shadow is when there's no lamp and no light at all.
When it gets dark at night, that's kind of like an anti-shadow, there's just no light to be seen anywhere.
If you turn off the lights in a room and shut the door completely, the inside becomes an anti-shadow.

Ask a question

Discussion

Recent activity

Categories: Physics · light· shadow· optics· physics concepts· opposites in nature