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Type: Multiple-Choice
Category: Light and Optics
Level: Grade 9
Score: 1
Author: arunscienceteacher@gmail.com
Last Modified: 2 years ago

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Light and Optics Question

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Grade 9 Light and Optics

Which of the following is not true about the brightness of light?
  1. The measurement of the amount of light output in a given area.
  2. The measurement of light output at a given time.
  3. The brightness of light is different at different distances from a light source.
  4. The power of the light source affects the brightness of light.