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How long of a shadow would a light of 30 feet off the ground make when shining on an object 10 feet tall that is 20 feet away from the light?
Wiki User
∙ 14y ago
The shaddow would be 6.7 feet long (assuming flat ground)
Wiki User
∙ 14y ago
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How is a shadow formed?
A shadow is formed when light is blocked by an object.
Why shadow get smaller and bigger in a scientifically explination?
The size of a shadow has everything to do with placement of the light source, the object, and the background on which the shadow is cast. In general, if the light source is close to the object and the background is further away then the shadow is larger than the object. The opposite is true if the light source is further away. Another part of the equation has to do with angles. This is what we commonly observe happining to shadows at different times of the day; long shadows in the morning and evening and smaller shadows around the middle of the day.
What did you notice about the shape of the shadow compared to the shape of the object?
The shape does not change, only the length, depending on where the light comes from. Such as on a sundial, and the shadow gets longer or shorter over hours.
How do you get a long shadow?
When the sun is low in the sky, the light from it hits objects and people at a shallow angle. This causes these objects and people to cast a long shadow. Long shadows can also be cast by any light source that is at a shallow angle to an object, such as a flashlight.
Is the length of your shadow the same as your height?
No. Only if the ground is level and the light source is very far away and at a 45 degree angle.
Why do we have shadow?
Shadows are caused when an object is blocking the light causing the shape to appear on the ground in the opposite direction of the source of the light. A shadow only appears in the light or when any shining object faces them. All objects in the way of the light will appear with a shadow in the opposite direction of the source of the light.
What causes the shape of a shadow to change?
when you change the object that creates the shadow by blocking the light, its' shadow will change. or there is another light source shining from a different direction on the object will affect the shadow too.
Does an luminous object cast a shadow?
because there is no light for it to reflect off
Can an object cause more than 1 shadow?
Yes, if multiple light sources are shining on it, then there will be multiple shadows.
Where are shadows from?
It has something to do with what light happens to be around that person at the time. If there happens to be a bright light shining on an object, that object's 'shadow' will cast itself on whatever is around it. +++ More simply, the "something" is the object blocking the direct light from the source. The air scatters the light so the shadow is not very dark - on the air-less Moon a shadow is fully dark.
Where is the sun's relationship to a shadow?
When a light (the sun) shines on you or any object, the object is in the way of the sunshine hitting the ground on the opposite side of the object, creating shade, or a shadow.
Do fishes have shadows?
Anything that blocks light will cast a shadow. So, if light is shining on a fish, it will have a shadow.
What is the size of the shadow and the distance of the object from the light source when a shadow is formed?
If you are using a point light source, the shadow's size is the object's size divided by the distance from the light source to the object multiplied by the distance from the light source to the shadow.
Why is there no shadow of the tree on the ground at 8pm?
as there is no sunlight at 8pm,and shadow is formed when light can not pass through that object casting shadow and if u throw light on tree it will not cast shadow on the ground as it only can happen before sunset.....
What do you need to see a shadow?
you need eyes a blocked path a light source. the light shines on the object blocking the path and reflects on the ground behind the objet and that is what you need to see a shadow
Does a street sign cast a shadow because light is shining on it at an angle?
An object casts a shadow whenever it is illuminated. It really has nothing to do with the angle. Regardless of the angle, it will cast a shadow. The LENGTH of the shadow it casts, however, is dependent upon the angle at which the light strikes the object. A stop sign will cast a very narrow shadow when the sun is directly overhead, for example, but will cast a very long one at sunrise or sunset.
What is the difference between an object and an image?
An image is an optical representation of an object.... Object is real... while image is not... i thnk the word imaginary fits for image.... we can take example of our shadow... when light falls on us ( object ) it creates an image (shadow ) in the ground....
