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Answer:
Optical instruments are based on optics. They use mirrors and lenses to reflect and refract light and form images. The light microscope and telescope use convex lenses and mirrors to make enlarged images of very tiny or distant objects. A camera uses a convex lens to make a reduced image of an object.
2. Give one example of an optical device. How is it useful in everyday life?
A camera is an optical device that creates and records an image of anything. The image could be captured on film or recognized by an electronic sensor and saved as a digital file. All cameras produce images in the same basic fashion, regardless of how the image is recorded, as seen in the diagram below, it's an optical device.
A camera is one of the optical equipment that captures visual images. At its most basic level, cameras are sealed boxes with a small hole (the aperture) through which light passes to capture an image on a light-sensitive surface (usually photographic film or a digital sensor).
An optical instrument (or "optic" for short) is a device that manipulates light waves (or photons) to improve image quality or analyze and determine their properties. Cameras that are frequently used as examples of optical device. This device is being used in our everyday life.
2. Give one example of an optical device. How is it useful in everyday life?
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