Umbra

Real World Example

Imagine you're at a crowded event, trying to have a conversation with a friend, but the noise around you makes it difficult to hear them clearly. This situation is similar to how light behaves when creating a shadow; in both cases, interference (sound in the event, and light around an object) affects clarity. Just as you might find a quiet corner to hear your friend better, the umbra is the area where the light is completely blocked, creating the darkest part of the shadow where clarity (or in this case, the absence of light interference) is achieved.