A camera uses a __________ to form an image.
Correct answer: A. convex lens
- A. convex lens
- B. concave lens
- C. condenser lens
- D. none of these
Explanation
A camera uses a converging convex lens to focus reflected light and form a real image on its film or electronic sensor. A concave lens diverges light and cannot normally form this image by itself.
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Everyday physics explains motion, force, work, power, pressure, heat, light, sound and electricity through familiar devices and natural events. Topics include simple machines, friction, expansion, reflection and refraction, lenses, household circuits, electrical safety and magnetism, with mass distinguished from weight and heat distinguished from temperature.
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