Electromagnetic Theory [GATE (Graduate Aptitude Test in Engineering) Physics]: Questions 19 - 22 of 88

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Question 19

Electromagnetic Theory

Appeared in Year: 2012

Question

MCQ▾

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Choice (4)Response

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Question 20

Appeared in Year: 2012

Question

MCQ▾

The space – time dependence of the electric field of a linearly polarized light in free space is given by where and are the amplitude, the angular frequency and the wavevector, respectively. The time average energy density associated with the electric field is –

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Question 21

Electromagnetic Theory

Appeared in Year: 2012

Question

MCQ▾

The electric and the magnetic fields and , respectively corresponding to the scalar potential and vector potential are –

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Question 22

Electromagnetic Theory

Appeared in Year: 2012

Question

MCQ▾

Two infinitely extended homogeneous isotropic dielectric media (medium – 1 and medium – 2 with dielectric constant and , respectively) meet at the plane as shown in the figure. A uniform electric field exists everywhere. For , the electric field is given by . The interface separating the two media is charge free. The electric displacement vector in the medium – 2 is given by,

Plane in Which Two Media Meet

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Choice (4)Response

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