GATE Physics: Questions 109 - 111 of 622

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Question number: 109

» Solid State Physics » Mobility and Effective Mass

Appeared in Year: 2016

Short Answer Question▾

Write in Short

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 )

Question number: 110

» Electromagnetic Theory » Scalar and Vector Potentials

Appeared in Year: 2016

MCQ▾

Question

The direction of Equation for a scalar field Equation at the point Equation is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 111

» Mathematical Physics » Linear Vector Space » Orthogonality and Completeness

Appeared in Year: 2012

MCQ▾

Question

Identify the correct statement for the vectors Equation and Equation

Choices

Choice (4) Response

a.

The vectors Equation and Equation linearly dependent

b.

The vectors Equation and Equation are orthogonal

c.

The vectors Equation and Equation are normalized

d.

The vectors Equation and Equation are linearly independent

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