Electromagnetic Theory-Radiation- from Moving Charges (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 1 - 4 of 4

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Question number: 1

» Electromagnetic Theory » Radiation- from Moving Charges

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Appeared in Year: 2014

MCQ▾

Question

A non – relativistic particle of mass and charge moving with a velocity and acceleration , emits radiation of intensity . What is the intensity of the radiation emitted by a particle of mass charge , velocity and acceleration ? (December)

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 2

» Electromagnetic Theory » Radiation- from Moving Charges

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Appeared in Year: 2013

MCQ▾

Question

An oscillating current flows in the direction of the y – axis through a thin metal sheet of area kept in the plane. The rate of total energy radiated per unit area from the surfaces of the metal sheet at a distance of 100 m is – (June – 2013)

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 3

» Electromagnetic Theory » Radiation- from Moving Charges

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Appeared in Year: 2014

MCQ▾

Question

An electromagnetically – shielded room is designed so that at a frequency the intensity of the external radiation that penetrates the room is 1 % of the incident radiation. If is the conductivity of the shielding material, its minimum thickness should be –

(Given that ) (June – 2014)

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 4

» Electromagnetic Theory » Radiation- from Moving Charges

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Appeared in Year: 2012

MCQ▾

Question

When a charged particle emits electromagnetic radiation, the electric field and the Poynting vector at a large distance from the emitter vary as and respectively. Which of the following choices for and are correct? (December)

Choices

Choice (4)Response

a.

b.

c.

d.

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