Meta Materials MCQ

Test your knowledge with important Meta Materials MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Meta Materials MCQs at Bissoy

• Yittrium iron garnet films allow the tuning of negative permeability.
  ক

  True

  খ

  False
• What expression can be used to determine the wavelengths of the resonances of metamolecules?
  ক

  λ0 ≈ √ꜫ

  খ

  λ0 ≈ 2/m

  গ

  λ0 ≈ √ꜫ(2le/m)

  ঘ

  λ0 ≈ √ꜫ(2lem)
• Pick the wrong statement with respect to electromagnetic bandgap metamaterials (EBG).
  ক

  It is possible to build an absolutely flawless EBG device.

  খ

  EBGs prevent propagation of a certain bandwidth of frequencies

  গ

  EBGs can work in ranges between a few GHz to few THz

  ঘ

  Applications include transmission line and low – gain antennas
• Who was the first scientist to describe negative – index materials theoretically?
  ক

  Victor Veselago

  খ

  Winston E. Kock

  গ

  Karl Ferdinand

  ঘ

  John Pendry
• 3D – chiral metamaterials exhibit polarization effects such as optical activity but refrain from displaying circular dichroism.
  ক

  True

  খ

  False
• Find out the incorrect statement from the following.
  ক

  Frequency selective surfaces exhibit subwavelength characteristics

  খ

  High impedence surfaces show inductive and capacitive properties

  গ

  Chirality never contributes to the negative refractive index of metamaterials

  ঘ

  Metamaterials are the only substances discovered that show negative refractive indices
• How can the chiral tensor of bi – anisotropic materials be expressed?
  ক

  κ = 3I + N + J

  খ

  κ = N + J – (1 / 3) I

  গ

  κ = (1 / 3) tr(κ)I + N + J

  ঘ

  κ = (N * J) ÷ 3I
• Which among the following properties is not exhibited by double negative metamaterials?
  ক

  Radiation pressure

  খ

  Reversal in the Doppler shift

  গ

  Cherenkov radiation

  ঘ

  ENG media with positive μr
• Which metamaterials use split – ring resonators?
  ক

  Plasmonics metamaterials

  খ

  Microwave frequency metamaterials

  গ

  Structural metamaterials

  ঘ

  Subwavelength structured metamaterials
• What is the full form of FSS metamaterials?
  ক

  Fully Selective Surface – based

  খ

  Flextronics Software Systems

  গ

  Frequency Selective Surface – based

  ঘ

  Fixed Frequency Response
• Gyrotropic materials exhibit Epsilon negative media.
  ক

  True

  খ

  False