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We see these when light from a luminous object like the Sun, a torch or an electric light falls on these and then travels towards our eye. Recall our grouping objects as opaque, transparent or translucent, in Chapter 4. If we cannot see through an object at all, it is an opaque object. If you are able to see clearly through an object, it is allowing light to pass through it and is transparent.

There are some objects through which we can see, but not very clearly. Such objects are known as translucent.

The Unfinished Atomic Bomb

Look around you and collect as many objects as you can — an eraser, plastic scale, pen, pencil, notebook, single sheet of paper, tracing paper or a piece of cloth. Try to look at something far away, through each of these objects Fig. Is light from a far away object able to travel to your eye, through any of the objects? We see that a given object or material could be transparent, translucent or opaque depending on whether it allows light to pass through it completely, partially or not at all.

Create Type with a Shadow or Reflection in Illustrator

Now, one by one hold each of the opaque objects in the sunlight, slightly above the ground. What do you see on the ground? You know that the dark patch formed by each on the ground is due to its shadow. Sometimes you can identify the object by looking at its shadow Fig.

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Spread a sheet of paper on the ground. Hold a familiar opaque object at some height, so that its shadow is formed on the sheet of paper on the ground. Ask one of your friends to draw. Draw outlines of the shadows of other objects in a similar way. Now, ask some other friends to identify the objects from these outlines of shadows. How many objects are they able to identify correctly?

Do you observe your shadow in a dark room or at night when there is no light? Do you observe a shadow when there is just a source of light and nothing else, in a room?

It seems we need a source of light and an opaque object, to see a shadow. Is there anything else required? This is an activity that you will have to do in the dark. In the evening, go out in an open ground with a few friends. Take a torch and a large sheet of cardboard with you.

Hold the torch close to the ground and shine it upwards so that its light falls on your friend's face. You now have a source of light that is falling on an opaque object. If there were no trees, building or any other object behind your friend, would you see the shadow of your friend's head? This does not mean that there is no shadow. After all, the light from the torch is not able to pass through his body to the other side. Now, ask another friend to hold the cardboard sheet behind your friend. Is the shadow now seen on the cardboard sheet Fig. Thus, the shadow can be seen only on a screen.

The ground, walls of a room a building, or other such surfaces act as a screen for the shadows you observe in everyday life.


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Shadows give us some information about shapes of objects. Sometimes, shadows can also mislead us about the shape of the object.

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In Fig. Have fun!


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Place a chair in the school ground on a sunny day. What do you observe from the shadow of the chair? Does the shadow give an accurate picture of the shape of the chair?

11. Light, Shadows and Reflections

If the chair is turned around a little, how does the shape of the shadow change? Take a thin notebook and look at its shadow. Then, take a rectangular box and look at its shadow. Do the two shadows seem to have a similar shape? Take flowers or other objects of different colours and look at their shadows. A red rose and a yellow rose, for instance.

Do the shadows look different in colour, when the colours of the objects are different? Take a long box and look at its shadow on the ground. When you move the box around, you may see that the size of the shadow changes. When is the shadow of the box the shortest, when the long side of the box is pointed towards the Sun or when the short side is pointing towards the Sun? Surely we need a lot of complicated stuff to make a camera?

KS2 Light | Which Objects Make Shadows or Reflections

Not really. If we just wish to make a simple pin hole camera. The discussions here are often difficult, sometimes controversial, and at times oppositional, reflecting the characteristics of A-bomb scholarship more broadly. The aim is to explore the various ways in which Hiroshima is remembered, but also to consider the ongoing legacy and impact of atomic warfare, the reverberations of which remain powerfully felt. Lexington Books. Series: New Studies in Modern Japan. David Lowe is chair in contemporary history at Deakin University.

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Interactively, you will see the additional AOVs under the beauty render in "it". To keep this example simple, we have a standin of the background plate using a constant color we created in Nuke:. We want to transfer the reflection and shadow from the CG render to the new background, so we rendered out the shadow and reflection collector AOVs:. In this example, we assign the MatteID01 to red with the intention of extracting the red channel as an alpha.

Release Notes PRMan Select the object's Material in the Maya Attribute Editor.