Is the shadow of the big tree long or short under the illumination of street lamps?

Under the illumination of street lamps, the shadows of big trees are usually very long.

When the street lamp shines on a big tree, the light will be blocked by the branches and leaves of the big tree, forming a shadow area. This shadow area is the shadow of the big tree. The length of the shadow depends on the position of the light source, the height of the tree and the angle of the light.

First of all, the position of the light source has a great influence on the length of the shadow. If the street lamp is located in front of the tree, the light will directly shine on the bottom of the tree, forming a long shadow. If the street lamp is located on the side of the tree, the light will hit the bottom of the tree obliquely, forming a short shadow.

Secondly, the height of the tree will also affect the length of the shadow. Generally speaking, the higher the tree, the longer the shadow. This is because the light needs to travel a longer distance to reach the bottom of the tree, so the shadow will be longer.

Finally, the angle of light will also affect the length of the shadow. If the light angle is low, the light will be more easily blocked by the branches and leaves of the tree, forming a longer shadow. If the angle of light is higher, it will pass through the branches and leaves of the tree more easily and form a shorter shadow.

To sum up, under the illumination of street lamps, the shadows of big trees are generally very long. However, the specific shadow length will also be affected by factors such as light source position, tree height and illumination angle. So in different situations, the shadow length of a big tree may be different.