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