Chapter 14: Light Amie Kuzara Boston College High School Physics 2007-2008
What do you think? <ul><li>Scenario: There is an apple on your desk, and you are sitting in complete darkness. </li></ul><...
 
 
Electromagnetic Spectrum
 
 
 
Speed of Light <ul><li>In a vacuum: 299,792,458 m/s </li></ul><ul><li>In air: 299,709,000 m/s </li></ul><ul><li>We will us...
Inverse-square law of brightness
 
 
 
 
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Light

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Light

  1. 1. Chapter 14: Light Amie Kuzara Boston College High School Physics 2007-2008
  2. 2. What do you think? <ul><li>Scenario: There is an apple on your desk, and you are sitting in complete darkness. </li></ul><ul><li>Approximately how long would it take your eyes to adjust so that you are able to see the apple? </li></ul>
  3. 5. Electromagnetic Spectrum
  4. 9. Speed of Light <ul><li>In a vacuum: 299,792,458 m/s </li></ul><ul><li>In air: 299,709,000 m/s </li></ul><ul><li>We will use: </li></ul><ul><li>300,000,000 m/s </li></ul><ul><li>3.00 x 10 8 m/s </li></ul><ul><li>c = f λ </li></ul><ul><li>E = h f </li></ul>
  5. 10. Inverse-square law of brightness

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