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Optical instruments all use _____ either to magnify images or to gather and focus light.

convex lenses
concave lenses
concave mirrors
convex mirrors

lenses (either convex or concave)

Did you know?

Did you know that optical instruments, such as telescopes and microscopes, rely on various types of lenses and mirrors? Convex lenses, like those commonly found in magnifying glasses, are used to magnify images and bring them into focus. Concave lenses, on the other hand, scatter light and can help correct certain vision problems. In addition to lenses, mirrors also play a crucial role in optics. Concave mirrors can gather and focus light, while convex mirrors are often used for safety and security purposes, providing a wider field of view. So, whether it's through the use of convex lenses, concave lenses, concave mirrors, or convex mirrors, optical instruments greatly rely on different optical elements to enhance vision and image quality.