Question

Do types of reflection​

Answer 1

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Answer 2

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$\implies$ Reflection:— When light strikes an opaque object, it is bounced off or reflected. When this reflected light to reaches our eyes, an image of the object is formed and we can see that object.

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The reflection of light depends on the properties of the object on which the light strikes. Reflection is broadly classified into:

• Regular Reflection:— Regular reflection takes place through surfaces, for example, mirror, plates, silver coated sheets, etc. The beam of lights remains parallel after reflection.
• Diffused Reflection:— Diffused reflection takes place through rough surfaces, for example, newspapers, books, tables, etc. The reflection through the surfaces is uneven. The parallel beams of incident light are not reflected parallel to each other. This happens due to irregular surface and does not mean failure of laws of reflection. A common example from daily life is reading a newspaper. The newspaper can be read because it is reflecting light, but it is not acting like a mirror. Thus, diffused reflection enables us to see objects.
• Multiple Reflection:— Can you imagine infinite images with a plane mirror? Have you observed yourself in a barber's shop or in a trial room in a garment shop? At these places, usually more than one mirror is arranged in such a way that more than one image from all sides is obtained. One plane mirror forms one image. But if two plane mirrors are arranged at different orientations, then different images with two mirrors are obtained. If you decrease the angle between the mirrors, you will get more images. That is why, if the angle between the two mirrors is 0, i.e., when the mirrors are parallel to each other, we get infinite images. Such phenomena of obtaining many images by employing two or more mirrors is called multiple reflection. How do you see your back in a mirror? This is possible through multiple reflection. Kaleidoscope makes use of this property of multiple reflections by mirrors kept at an angle to make intricate patterns.

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