Light
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The document discusses light and the electromagnetic spectrum. It asks how long it would take eyes to adjust to see an apple in the dark and provides background information on the speed of light in a vacuum and air as well as the inverse-square law of brightness and relationships between frequency, wavelength, and energy of light.
Light
- 1. Chapter 14: Light Amie Kuzara Boston College High School Physics 2007-2008
- 2. What do you think? Scenario: There is an apple on your desk, and you are sitting in complete darkness. Approximately how long would it take your eyes to adjust so that you are able to see the apple?
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- 9. Speed of Light In a vacuum: 299,792,458 m/s In air: 299,709,000 m/s We will use: 300,000,000 m/s 3.00 x 10 8 m/s c = f 了 E = h f
- 10. Inverse-square law of brightness
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