Electromagnetic Theory [GATE (Graduate Aptitude Test in Engineering) Physics]: Questions 53 - 56 of 88

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Question 53

Appeared in Year: 2008

Question

MCQ▾

A plane electromagnetic wave is given by At a given location, the number of times vanishes in one second is –

Choices

Choice (4)Response

a.

An integer near and is independent of

b.

An integer near where and zero when , is integer

c.

An integer near and is independent of

d.

An integer near when and zero, when is integer

Question 54

Electromagnetic Theory

Appeared in Year: 2008

Question

MCQ▾

Unpolarized light falls from air to a planar air – glass interface (refractive index of glass is 1.5) and the reflected light is observed to be plane polarized. The polarization vector and the angle of incident are –

Choices

Choice (4)Response

a.

parallel to the plane of incident and

b.

parallel to the plane of incidence and

c.

perpendicular to the plane of incident and

d.

perpendicular to the plane of incident and

Question 55

Appeared in Year: 2008

Question

MCQ▾

At time , a charge distribution exists within an ideal homogeneous conductor of permittivity and conductivity . At a later time is given by –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 56

Electromagnetic Theory

Appeared in Year: 2008

Question

MCQ▾

The curl of a vector field is . Identify the appropriate vector field from the choices given below.

Choices

Choice (4)Response

a.

b.

c.

d.

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