Environmental Sciences, asked by dhruv136586, 1 month ago

What is reflection ? I want a hard answer
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Answers

Answered by sushmap68
1

When people find out I’m an executive coach, they often ask who my toughest clients are. Inexperienced leaders? Senior leaders who think they know everything? Leaders who bully and belittle others? Leaders who shirk responsibility?

The answer is none of the above. The hardest leaders to coach are those who won’t reflect — particularly leaders who won’t reflect on themselves.

At its simplest, reflection is about careful thought. But the kind of reflection that is really valuable to leaders is more nuanced than that. The most useful reflection involves the conscious consideration and analysis of beliefs and actions for the purpose of learning. Reflection gives the brain an opportunity to pause amidst the chaos, untangle and sort through observations and experiences, consider multiple possible interpretations, and create meaning. This meaning becomes learning, which can then inform future mindsets and actions. For leaders, this “meaning making” is crucial to their ongoing growth and development.

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Answered by SMore29
1

What is Reflection of Light?

When a ray of light approaches a smooth polished surface and the light ray bounces back, it is called the reflection of light. The incident light ray which lands upon the surface is said to be reflected off the surface. The ray that bounces back is called the reflected ray. If a perpendicular were to be drawn on a reflecting surface, it would be called normal. The figure below shows the reflection of an incident beam on a plane mirror.

Here, the angle of incidence and angle of reflection are with respect to normal and the reflective surface.

Reflection of Light

Laws of Reflection

The laws of reflection determine the reflection of incident light rays on reflecting surfaces, like mirrors, smooth metal surfaces and clear water. Let’s consider a plane mirror as shown in the figure above. The law of reflection states that

The incident ray, the reflected ray and the normal all lie in the same plane

The angle of incidence = Angle of reflection

2,54,730

Types of Reflection of Light

Different types of reflection of light are briefly discussed below:

Regular reflection is also known as specular reflection

Diffused reflection

Multiple reflection

Regular/ Specular Reflection

Specular Reflection refers to a clear and sharp reflection, like the ones you get in a mirror. A mirror is made of glass which is coated with a uniform layer of a highly reflective material such as powder. This reflective surface reflects almost all the light incident on it uniformly. There is not much variation in the angles of reflections between various points. This means that the haziness and the blurring are almost entirely eliminated.

Regular Specular Reflection

Regular Specular Reflection

Diffused Reflection

Reflective surface other than mirrors, in general, has a very rough finish. This may be due to wear and tear such as scratches and dents or dirt on the surface. Sometimes even the material of which the surface is made of matters. All this leads to a loss of both the brightness and the quality of the reflection.

In the case of such rough surfaces, the angle of reflection when compared between points is completely haphazard. For rough surfaces, the rays incident at slightly different points on the surface is reflected in completely different directions. This type of reflection is called diffused reflection and is what enables us to see non-shiny objects.

Diffused Reflection

Diffused Reflection

Multiple Reflection

A single image is formed when an object is placed in front of a mirror. What happens if we use two mirrors? Since reflective surfaces such as mirrors are very good at preserving the intensity of light in a reflection, a single source of light can be reflected multiple times. This multiple reflection is possible until the intensity of light becomes low until the point that we cannot see. This means that we can have almost infinite multiple reflections. We can also see an image at every individual reflection. This means that each image is the result of an image or an image of an image.

The number of images we see is dependent largely on the angle between the two mirrors. We see that as we go on decreasing the angle between the mirrors, the number of images goes on increasing. And when the angle becomes zero, i.e., when the mirrors become parallel to each other, the number of images becomes infinite. This effect can be easily observed when your barber uses another smaller mirror to show you the back of your head. When this happens, not only do you see the back of your head, you also see innumerable images of yourself. The variation of the number of images of an object placed between two mirrors with the angle between the mirrors can be described by a simple formula:

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