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Switch on your light source. Make sure it is shining onto a wall. Hold your largest plastic shopping bag square between the light source and the wall. What do you observe?​

Sagot :

Since the plastic is not very thick, light rays can penetrate through when I hold my largest cardboard square between the light source and the wall. As a result, the cardboard tends to cast a shadow.

Based on the precise materials and light sources that were employed, the results of the cardboard experiment frequently differ.

Keep in mind that it is generally expected that reflective materials, such aluminum foil and mirrors, would reflect the specified or given light.

Since the plastic is not very thick, light rays do penetrate when I hold my largest cardboard square between the light source and the wall. As a result, the cardboard tends to cast a shadow when held in this position.

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