Superconductors
Quiz
•
Physics
•
University
•
Hard
SUWETHA G
Used 2+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Combination of electron and positive site in BCS theory is called …………...
Phonon
Positron
Neutron
Electron
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In the BCS theory ……………… charged lattice is considered
Positive charged
Negative charged
Neutral
None of these
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify the correct condition in which the absorption of infrared radiation occurs in Superconductors?
hω ≤ 2Δ0
hω ≥ 2Δ0
hω = 2Δ0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Once the absorption of IR radiation happens in Superconductors,the energy gap could be determined by,
wavelength of IR
Frequency of IR
Speed of IR
Energy of IR
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In Josephson effect, the static potential results in alternating current
true
false
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Choose the correct answer(s)
Josephson frequency includes the ratio of ____________
Charge of the electron to the planck constant
Two times the charge of the electrons to the Planck constant
Two times the Planck constant to the charge of the electron.
Charge of the cooper pair to the planck constant.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In type two superconductors, the surface energy will be negative when,
( here ξ is the coherence length ,λ is the penetration depth)
ξ< λ
λ< ξ
ξ ≥λ
λ>ξ
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