Solid State Physics (GATE (Graduate Aptitude Test in Engineering) Physics): Questions 5  8 of 68
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Question number: 5
» Solid State Physics » Diffraction Methods for Structure Determination
Appeared in Year: 2014
Write in Short
Neutrons moving with speed are used for the determination of crystal structure. If the Bragg angle for the first order diffraction is , the interplanar spacing of the crystal is .
(Given: )
Question number: 6
» Solid State Physics » Bonding in Solids
Appeared in Year: 2014
Question
The Miller indices of a plane passing through the three points having coordinates are –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 7
» Solid State Physics » Mobility and Effective Mass
Appeared in Year: 2016
Write in Short
The energy vs wave vector relationship near the bottom of a band for a solid can be approximation as , where the lattice constant . The values of and are and , respectively. At the bottom of the conduction band, the ratio of the effective mass of the electron to the mass of fee electron is . (Give your answer up to two decimal placed)
(Take mass of free electron )
Passage
The dispersion relation for a one – dimensional monatomic crystal with lattice spacing a, which interacts via nearest neighbor harmonic potential is given by, , where is a constant of appropriate unit.
Question number: 8 (1 of 2 Based on Passage) Show Passage
» Solid State Physics » Elements of Crystallography
Appeared in Year: 2012
Question
The group velocity at the boundary of the first Brillouin zone is –
Choices
Choice (4)  Response  

a. 


b.  1 

c. 


d.  0 
