LECTURE 14
     questions after lecture

first go back and answer these

• QUESTIONS BEFORE LECTURE 14

now think about these

• Give three examples of refraction of light.
• How do we know that light is a wave? I want the pre-Maxwell answer.
• What did Maxwell say the medium is for light waves? What is the medium for light waves? Is it material?
• What was being illustrated when I told you to pinch your fingers close together and look through them? What was the point of making a very small slit?
• Who or what detects the nonvisible frequencies of light? Example: your radio detects FM.
• Give an example of the Doppler effect for vehicles, sound and light.
• Give an example of a shock wave for water and for sound.