Electromagnetic Theory-Radiation- From Moving Charges (CSIR Physical Sciences): Questions 1 - 3 of 4

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Question number: 1

» Electromagnetic Theory » Radiation- From Moving Charges

Appeared in Year: 2014

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2

» Electromagnetic Theory » Radiation- From Moving Charges

Appeared in Year: 2013

MCQ▾

Question

An oscillating current Equation flows in the direction of the y – axis through a thin metal sheet of area Equation kept in the Equation 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.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 3

» Electromagnetic Theory » Radiation- From Moving Charges

Appeared in Year: 2014

MCQ▾

Question

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

(Given that Equation ) (June – 2014)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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