Electromagnetic Theory-Diffraction and Polarization (GATE Physics): Questions 1 - 5 of 6

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Question number: 1

» Electromagnetic Theory » Diffraction and Polarization

Appeared in Year: 2015

Short Answer Question▾

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A beam of X – ray of intensity I0 is incident normally on a metal sheet of thickness 2 mm. The intensity of the transmitted beam is 0.025I0 . The linear absorption coefficient of the metal sheet (in per m) is ________ (up to one decimal place).

Question number: 2

» Electromagnetic Theory » Diffraction and Polarization

Appeared in Year: 2015

Short Answer Question▾

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A point charge is placed between two semi – infinite conducting plates which are inclined at an angle of 300 with respect to each other. The number of image charge is ________.

Question number: 3

» Electromagnetic Theory » Diffraction and Polarization

Appeared in Year: 2014

MCQ▾

Question

An unpolarized light wave is incident from air on a glass surface at the Brewster angle. The angle between the reflected and the refracted wave is –

Choices

Choice (4) Response

a.

900

b.

450

c.

1200

d.

00

Question number: 4

» Electromagnetic Theory » Diffraction and Polarization

Appeared in Year: 2012

MCQ▾

Question

fdv hnjkvichnjvlkvlikjdfvhd

Choices

Choice (4) Response

a.

D2=ε0[4i^6j^+10k^]

b.

D2=ε0[4i^+6j^+10k^]

c.

D2=ε0[10i^15j^+10k^]

d.

D2=ε0[10i^+15j^+10k^]

Question number: 5

» Electromagnetic Theory » Diffraction and Polarization

Appeared in Year: 2012

MCQ▾

Question

Two infinitely extended homogeneous isotropic dielectric media (medium – 1 and medium – 2 with dielectric constant ε1ε0=2 and ε2ε0=5 , respectively) meet at the z=0 plane as shown in the figure. A uniform electric field exists everywhere. For z0 , the electric field is given by E1=2i^3j^+5k^ . The interface separating the two media is charge free. The electric displacement vector in the medium – 2 is given by,

Segment f Segment f: Segment [C, D] Vector u Vector u: Vector [A, B] Vector u Vector u: Vector [A, B] medium - 1 text1 = “medium - 1 “medium - 2 text1_1 = “medium - 2”z = 0 text1_2 = “z = 0”z = 0 text1_2 = “z = 0”z = 0 text1_2 = “z = 0”

Plane in Which Two Media Meet

In figure two infinitely extended homogeneous isotropic dielectric media meet at the z = 0 plane is shown.

Choices

Choice (4) Response

a.

D2=ε0[10i^15j^+10k^]

b.

D2=ε0[4i^+6j^+10k^]

c.

D2=ε0[10i^+15j^+10k^]

d.

D2=ε0[4i^6j^+10k^]

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