Electromagnetic Theory-Interference (CSIR Physical Sciences): Questions 1 - 2 of 2

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Question number: 1

» Electromagnetic Theory » Interference

Appeared in Year: 2012

MCQ▾

Question

Consider the interference of two coherent electromagnetic waves whose electric field vectors are given by Equation and Equation where Equation is the phase difference. The intensity of the resulting wave is given by Equation , where Equation is the time average of Equation . The total intensity is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

0

d.

Equation

Question number: 2

» Electromagnetic Theory » Interference

Appeared in Year: 2014

MCQ▾

Question

A parallel beam of light of wavelength Equation is incident normally on a thin polymer film with air on both sides. If the film has a refractive index Equation , then second order bright fringes can be observed in reflection when the thickness of the film is - (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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