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The speed changes. (and sometimes the angle.)
Assuming you're talking about transparent substances... It bends (refracts). The amount depends on the difference between the refractive index of each substance.
It is reflected and/or absorbed depending on the color of the light and the object.
When a substance absorbs light the wavelengths that correspond to that color cannot be seen. Only colors that are reflected are visible.
When light passes from one substance to another, and both have the same refractive index, then there will be no refraction - or change of direction - at the border. It is as if there were only one substance.
The speed changes. (and sometimes the angle.)
The refraction of light means that although light travels in straight lines, when it moves from one substance into another, it can change direction. This happens because the wave changes speed as it travels between different types of materials.As a light wave travelsbetween diffrent clear substances, the light wave bends. When light passes one substance to another, the light changes direction.
It depends on whether the substance is transparent, translucent or opaque. A transparent substance allows nearly all the light through. A translucent substance allows some light through. An opaque substance blocks all the light.
Assuming you're talking about transparent substances... It bends (refracts). The amount depends on the difference between the refractive index of each substance.
It is reflected and/or absorbed depending on the color of the light and the object.
When a substance absorbs light the wavelengths that correspond to that color cannot be seen. Only colors that are reflected are visible.
When light passes from one substance to another, and both have the same refractive index, then there will be no refraction - or change of direction - at the border. It is as if there were only one substance.
Its being Refracted.
No
Silver nitrate does not "react" with light, because light is not a substance. Light can catalyze the autodecompositon of silver nitrate.
When light passes through a substance near 0 degrees Kelvin, it bends and becomes deformed.
Depending on the substance that comprises the object, light may be reflected, absorbed, or transmitted.