Question

What are the differences between a shadow and an image?

Answer 1

IMAGE	SHADOW
1. Images are colour full.	1. Shadows does not have colour.
2. Image is formed due to the reflection or refraction of light.	2. Shadows are formed when opaque objects obstruct the path of light.
3. Image gives more information such as colour, structure, etc. about the object.	3. Shadow does not provide any details about the object but it gives an idea about the shape of the object.
4. An image in a plane mirror doesn’t change in size at all; it is always of the same size as that of the object.	4. Shadow size may be changed depend on light sources position.
5. An image in a mirror can be seen without a screen, whereas it is mandatory to have a screen to form a shadow.	5. A dark patch formed on a surface behind an opaque object placed in the path of light is called a shadow.