Telescopes use lenses to focus light.

Meaning: This means that telescopes employ lenses to converge light rays, allowing for a clearer and more detailed observation of distant objects.

Choice of Words: Telescopes are instruments used to observe distant objects by magnifying the light they emit. Use means to employ or apply something. Lenses are optical devices that focus or disperse light. Focus means to bring or come into a clear or sharp state. When you put them together, "Telescopes use lenses to focus light" expresses the use of lenses in telescopes to concentrate and direct light.

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