Pencil in a beaker with water

Pencil in a beaker with water

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Credit: GIPhotoStock/SCIENCE PHOTO LIBRARY

Caption: Pencil in a beaker with water. A pencil in a beaker filled with water is used to demonstrate optical refraction due to the difference in the refractive index between water and air.

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Keywords: air, beaker, demonstration, education, educational, effect, experiment, geometric, index of refraction, light, optical, optics, pencil, phenomenon, physical, physics, ray, refract, refraction, refractive, scientific, still life, water

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