Shadows
Floor
Wall
Torch
Solid Object
Turning torch on
Light rays from
torch
Light rays from
torch absorbed
and reflected by
wall.
It is the reflected light
that allows us to see the
wall
Light rays from torch
absorbed or reflected by
object
It is this diffused reflection of the
light that allows us to see the wall
and object. These reflected rays
also allow us to see the back of the
object and the wall without direct
torch light
No direct light from
torch
No direct light from
torch
Shadow of
object on wall.
The shadow is
higher than the
object.
This is due to the
angle formed by the
light rays hitting and
missing the object
We can change the
height of the
shadow by moving
the object and the
torch.