Since I can't view images, I'll help you understand refraction, reflection, diffraction, and absorption in the context of light waves.
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Refraction: This occurs when light travels from one medium to another (like air to water) and changes speed, causing the light to bend.
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Reflection: This happens when light hits a surface and bounces back into the original medium.
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Diffraction: This is the spreading of light waves as they pass through an opening or around obstacles.
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Absorption: This refers to light being taken in by a medium rather than passing through or reflecting off of it.
If the image you are referring to depicts light entering water from air and changing direction, then it illustrates refraction. If you describe the image or its key features, I can provide a more accurate interpretation.