Part I: Light Beams In Part I(b), as you moved the focal point from 50 to 200 on

Question

Part I: Light Beams

In Part I(b), as you moved the focal point from 50 to 200 on the optical axis, the lens  ---Select--- became fatter did not change shape became slimmer .

In Part I(c), the reason the colored rays are dispersed so that you can see individual colored rays is because the  ---Select--- index of polarization index of reflection index of refraction is different for each color of the spectrum.

This phenomenon is referred to as  ---Select--- immersion dispersion specular reflection of light.

Part II: Ray Diagram

200

100   

50

200

100   

50

300

150    

50

100

75    

50

(a) The image was  ---Select--- virtual real .
(b) The image distance was  ---Select--- positive negative neither positive nor negative .

Explanation / Answer

Part I: Light Beams

In Part I(b), as you moved the focal point from 50 to 200 on the optical axis, the lens BECAME SLIMMER

In Part I(c), the reason the colored rays are dispersed so that you can see individual colored rays is because the  ---Select--- index of refraction is different for each color of the spectrum.

This phenomenon is referred to as  ---Select--- dispersion specular reflection of light.

Part II: Ray Diagram

100   

100  

Step 2

150    

75   

Step 3

(a) The image was  ---Select--- virtual
(b) The image distance was  ---Select--- negative

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