Question

How are shadows formed? List some features of shadows.

Answer 1

Formation of Shadows:

1. When light is prevented by an object, shadows are created.
2. Because an opaque object totally blocks the light, it casts a dark shadow behind it.
3. When an opaque item blocks the passage of light, it produces a shadow.
4. On the other side of the light source, an object casts a shadow.

characteristics of shadow

1. It depends on shape of the object.
2. It depends on source of light whether it is plane parallel rays or spherical
3. It depends on position of the object whether the object is at infinite or finite distance.
4. It depends on the position of source of light
5. The shadow is darker than the surrounding area.