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