What is the photometer?
Correct answer: B. Measuring light Intensity
- A. Testing picture Quality
- B. Measuring light Intensity
- C. Measuring Size of Picture
- D. Checking colors and Pictures
Explanation
A photometer measures the intensity or brightness of light. It is different from a camera or colorimeter, which may assess images or colors.
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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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