Respuesta :
Answer:
Explanation:
When a pencil is partially immersed in water, it appears to be bent at the water surface. This phenomenon is due to the refraction of light.
When light passes from one medium (such as air) to another medium (such as water), it changes direction. This change in direction is caused by the difference in the speed of light in the two mediums. In this case, when light travels from water to air, it bends away from the normal (an imaginary line perpendicular to the water surface) .
Consider a pencil partially immersed in water. The rays of light from the tip of the pencil bend away from the normal as they pass from water to air. These refracted rays appear to come from a point above the actual position of the tip of the pencil. As a result, the immersed portion of the pencil in water appears to be bent at the water surface .
Additionally, the immersed portion of the pencil in water also appears to be shorter than its actual length due to the refraction of light .
In summary, the bending of a pencil partially immersed in water is caused by the refraction of light as it passes from water to air, resulting in the apparent shift in the position of the immersed portion of the pencil .
