What is based on the principle of shadow formation due to sunlight ?
Answers
Answer:
How is shadow formed ?
A shadow is actually just a space or region, where there is no light since an opaque object is blocking light rays. The position and intensity of the source of light affect the properties of the type of shadow that is formed. For example, let us consider the sun to be a light source. When it is early morning or late afternoon, you may notice that your shadows are elongated. But at noon, when the sun is right above your head, the shadow formed is short and dark in nature.
Also, you would’ve noticed that at noon, the shadows formed are more defined in nature when compared to late afternoon or early morning shadows which are slightly blurred with edges not defined very well. This is because when the light source is wider during these times.
Light sources can be either point or non-point (extended) in nature. If it is a point source of light, then it forms a simple shadow called an umbra. If it is an extended light source, the shadow is divided into the umbra, penumbra, and antumbra. They can also be used to define levels of darkness, as is sometimes done when dealing with sunspots.
Although shadows cast on surfaces are mostly two-dimensional in nature, they can also be seen to have a three-dimensional effect. For example, when a shadow is cast on dense mist or fog, you can observe this effect.
Explanation:
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Answer:
Explanation:
Formation of shadow is based on principle of Rectilinear propagation of light. Rectilinear propagation of light states that light Travels in straight line. Diffraction of light states that, Diffraction is the slight bending of light as it passes around the edge of an object.