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- 1. Multiple Choice
Everytime light hits a surface (air to water) light is reflected.
TRUE
FALSE
- 2. Multiple Choice
If the film is a higher index of refraction - the light wave will slow down.
TRUE
FALSE
- 3. Multiple Choice
If the index of refraction of the film is higher than air - the reflected ray will undergo a phase shift.
TRUE
FALSE
- 4. Multiple Choice
Everytime light hits a "thin film" - there is a phase shift.
TRUE
FALSE
- 5. Multiple Choice
If the index of refraction of the third material (n3) is lower than the index of refraction of the second material (n2) - there will be a phase shift.
TRUE
FALSE
- 6. Multiple Choice
What is the path difference of the wave traveling through the film?
t
2t
t/2
0
- 7. Multiple Choice
When there is a phase shift - the interference type will change.
TRUE
FALSE
- 8. Multiple Choice
What type of interference is shown?
Constructive
Destructive
- 9. Multiple Choice
What type of interference is shown?
Constructive
Destructive
- 10. Multiple Choice
If rays 2 and 3 are IN PHASE - What type of interference will they experience?
Constructive
Destructive
- 11. Multiple Choice
Light can reflect from any interface where th
ere is a change in refractive index.
TRUE
FALSE
- 12. Multiple Choice
Thin film interference is caused by a change of index of refraction in a material and the light refracting through a boundary.
TRUE
FALSE
- 13. Multiple Choice
At the first air-soap interface (assuming soap has a higher index of refraction) there will be a phase shift.
TRUE
FALSE
- 14. Multiple Choice
What is destructive interference?
crest meets a crest
crest meets a trough
trough meets a trough
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