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Science exam 6.2
Extending human vision (eye-like things) say how many and what lenses it uses
Question | Answer |
---|---|
Microscope | 2 convex lenses to magnify small, close objects |
Refracting Telescope | 2 convex lenses, lenses with longer focal lengths |
Reflecting telescope | 1 concave mirror, 1 plane mirror, 1 convex lens |
Binoculars | 2 refracting telescopes (2 convex lenses), light reflected several times to keep it short |
Camera | Camera works very much like human eye. Instead of a lens that can change shape to focus the light on the "screen",camera moves position of lens to change distance from lens to screen |