To illustrate the behavior of light upon encountering a convex lens, you would typically depict the following:
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Convex Lens: Draw a convex lens in the center of the image. This lens is thicker in the middle and thinner at the edges.
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Incoming Light Rays: On the left side of the lens, draw two parallel arrows pointing towards the lens. These arrows represent incoming light rays. The arrows should be horizontal and parallel to each other, indicating that the light is coming from a distance (often assumed to be from an object at infinity).
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Refracted Light Rays: After the light rays pass through the convex lens, they will bend (refract) due to the lens's shape. Draw two arrows so that they diverge from the point where they appear to converge on the right side of the lens. These arrows should be angled towards the right, suggesting that the light rays are converging towards a focal point on the right side of the lens.
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Focal Point: You can indicate the focal point on the right side by marking it with a small dot or "F". The light rays should be shown converging towards this point.
In this illustration, the two arrows representing the incoming light should point towards the lens, while the refracted rays should point towards the focal point on the opposite side of the lens, demonstrating how the convex lens causes parallel light rays to converge.