| Coverage : An optical illusion is characterized by visually perceived images that, at least in common sense terms, are deceptive or misleading. The Optical Illusion Quiz takes one to the fascinating world of illusions by way of examples, types of illusions, and other facts related to it. Take this quiz and crack it if you can or else guess your way through it. |
| 1. | The idea that illusions are assumed to arise by interaction with assumptions about the world, leading to "unconscious inferences", was first suggested by: |
| a. | | Cormac McCarthy |
| b. | | Paul Curry |
| c. | | M.C. Escher |
| d. | | Hermann Helmholtz |
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| 2. | Pictures or objects that elicit a perceptual 'switch' between the alternative interpretations are categorized as: |
| a. | | Distorting illusions |
| b. | | Ambiguous illusions |
| c. | | Paradox illusions |
| d. | | Fictional illusions |
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| 3. | The Rubin Vase is an example of: |
| a. | | Distorting illusions |
| b. | | Ambiguous illusions |
| c. | | Paradox illusions |
| d. | | Fictional illusions |
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| 4. | Which illusions are characterized by distortions of size, length, or curvature? |
| a. | | Distorting illusions |
| b. | | Ambiguous illusions |
| c. | | Paradox illusions |
| d. | | Fictional illusions |
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| 5. | Which illusions are generated by objects that are paradoxical or impossible? |
| a. | | Distorting illusions |
| b. | | Ambiguous illusions |
| c. | | Paradox illusions |
| d. | | Fictional illusions |
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| 6. | The perception of objects that are genuinely not there to all but a single observer is called as: |
| a. | | Distorting illusions |
| b. | | Ambiguous illusions |
| c. | | Paradox illusions |
| d. | | Fictional illusions |
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| 7. | Ames Room, a distorted room that is used to create an optical illusion, was invented by: |
| a. | | Cormac McCarthy |
| b. | | Paul Curry |
| c. | | Adelbert Ames, Jr |
| d. | | Roald Dahl |
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| 8. | An Ames room is depicted in the 1971 film adaptation of the Roald Dahl novel: |
| a. | | Matilda |
| b. | | Going Solo |
| c. | | The BFG |
| d. | | Charlie and the Chocolate Factory |
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| 9. | A doctored photograph purporting to be of an impossible cube was published in the magazine: |
| a. | | Hacker |
| b. | | Equinox |
| c. | | Scientific American |
| d. | | Signs of the Times |
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| 10. | According to Martin Gardner, the missing square puzzle was invented by a New York City amateur magician: |
| a. | | Cormac McCarthy |
| b. | | Paul Curry |
| c. | | M.C. Escher |
| d. | | Roald Dahl |
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| 11. | The Pulfrich effect was used in a 1997 special TV episode of: |
| a. | | Trichotometric indicator support |
| b. | | The Impossible Magnet |
| c. | | Analog Science Fiction and Fact |
| d. | | 3rd Rock from the Sun |
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| 12. | The Ehrenstein illusion is an optical illusion studied by the German psychologist: |
| a. | | Jastrow |
| b. | | M. C. Escher |
| c. | | Walter Ehrenstein |
| d. | | Kanizsa |
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