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How factors affect the magnification of a convex lens?
The magnification of a convex lens depends on its focal length and the object distance from the lens. Increasing the focal length or decreasing the object distance will usually increase the magnification. The magnification is also affected by the size of the object being viewed and the optical properties of the lens itself.
How does the thickness of a convex lens affect a focal length?
A thicker convex lens has a shorter focal length. This is because the curvature of the lens is more pronounced, causing light rays to converge more quickly to a point. Conversely, a thinner lens has a longer focal length due to its flatter curvature, causing light rays to converge more gradually.
Do convex lens make them bigger?
A convex lens can magnify objects when they are placed closer to the lens than their focal length. However, the size of the object itself remains the same. The lens allows you to see the object as if it were larger by converging light rays to create a magnified image.
Do convex lenses have negative focal length?
No, convex lenses have positive focal lengths. The focal length is the distance from the lens to its focal point where light rays converge. In convex lenses, parallel light rays are focused to a point on the opposite side of the lens, resulting in a positive focal length.
What is the power of a convex lens with 10cm focal length?
The power of a lens is calculated as the reciprocal of its focal length in meters. Therefore, a convex lens with a 10 cm focal length has a power of +10 diopters.
