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The Invisible Cloak
  • 1. What is the main material used to create the invisible cloak?
A) Plastic
B) Metamaterials
C) Cotton
D) Glass
  • 2. Which phenomenon allows the invisible cloak to work?
A) Magnetic fields
B) Light bending
C) Sound absorption
D) Thermal insulation
  • 3. Who is credited with the research on invisibility cloaks?
A) David Smith
B) Albert Einstein
C) Isaac Newton
D) Nikola Tesla
  • 4. In which year was the concept of an invisibility cloak first demonstrated?
A) 2006
B) 2010
C) 2000
D) 1995
  • 5. What challenges do scientists face in creating invisibility cloaks?
A) High visibility
B) Limited bandwidth
C) Excessive weight
D) High costs
  • 6. How do invisibility cloaks affect the appearance of objects?
A) They change color
B) They absorb all light
C) They redirect light around them
D) They emit light
  • 7. What scientific principle do invisibility cloaks often rely on?
A) Transformation optics
B) Quantum entanglement
C) Relativity
D) Thermodynamics
  • 8. What is the public perception of invisibility cloaks mainly based on?
A) Military reports
B) Historical artifacts
C) Science fiction
D) Natural phenomena
  • 9. What is a major ethical concern regarding invisible cloaks?
A) Global warming
B) Material waste
C) Privacy invasion
D) Cost to produce
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