Solid State Physics (GATE (Graduate Aptitude Test in Engineering) Physics): Questions 5 - 7 of 65

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Question number: 5

» Solid State Physics » Diffraction Methods for Structure Determination

Appeared in Year: 2014

Short Answer Question▾

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Neutrons moving with speed Equation are used for the determination of crystal structure. If the Bragg angle for the first order diffraction is Equation , the interplanar spacing of the crystal is Equation .

(Given: Equation )

Question number: 6

» Solid State Physics » Bonding in Solids

Appeared in Year: 2014



The Miller indices of a plane passing through the three points having coordinates Equation are –


Choice (4) Response









Question number: 7

» Solid State Physics » Mobility and Effective Mass

Appeared in Year: 2016

Short Answer Question▾

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The energy vs wave vector Equation relationship near the bottom of a band for a solid can be approximation as Equation , where the lattice constant Equation . The values of Equation and Equation are Equation and Equation , respectively. At the bottom of the conduction band, the ratio of the effective mass of the electron to the mass of fee electron is Equation . (Give your answer up to two decimal placed)

(Take Equation mass of free electron Equation )

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