You might even think this is because the ingredients are the same. But that’s the answer It’s not easy.

What if then? From where?

The colors of objects are determined by the frequencies they absorb and reflect in the visible light range.

Of course, the color of an object also depends on the type of light that falls on it. For example, a paint containing blue pigment looks blue by reflecting blue frequencies in the light that hits it. white light The blue light reflected from this paint surface reaches our eyes, causing the object to be perceived as blue.

But if only brown light falls on this surface, brown Because the light is absorbed, the object appears black.

This situation is one window We can also see through glass. The glass looks like a mirror when it reflects white light, and takes on a golden sheen when it reflects sunlight at sunset. As you can see, the appearance of the object changes with the type and color of light hitting it, even though the material of the object remains the same.

We can imagine the same situation for soap.

blue soap Let’s imagine we’re washing our hands in a bright bathroom. When we apply the soap to our hands, it retains its blue color for a while thanks to the blue pigments on it. However, when we rub our hands with water, soap and water form a mixture. Since water is transparent, this mixture takes on an opaque appearance and appears white by reflecting the light hitting it.

When we rub our hands, this The soapy water starts to foam. As the bubbles grow larger, they become thinner and more transparent. In this case, they transmit most of the light while reflecting only a small part of it. That is why the bubbles also look transparent.

That’s the whole reason. color of an objectnot only because of the materials and pigments it contains; It also has to do with the type of light that falls on it.

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