Item 4A 60-W light bulb radiates electromagnetic waves uniformly in all directions.At a distance of 1.0 m from the bulb, the light intensity is Io, the averageenergy density of the waves is up, and the rms electric and magnetic fieldvalues are Eo and Bo, respectively.Part AAt 2.0 m from the bulb, what is the light intensity?►View Available Hint(s)O Io√√1010SubmitPart BAt 2.0 m from the bulb, what is the average energy density of the waves?► View Available Hint(s)Ouo√플라이uSubmituo Part CAt 2.0 m from the bulb, what is the rms magnetic field value?► View Available Hint(s)O BoВоO ВоВоSubmit

A. The intensity of light is inversely proportional to the square of the distance. Hence, at 2.0 m…

Answered: ▼ Part C At 2.0 m from the bulb, what…

▼ Part C At 2.0 m from the bulb, what is the rms magnetic field value? ▸ View Available Hint(s) O Bo O Bo O Bo O Bo Submit

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter34: Electromagnetic Waves

Section: Chapter Questions

Problem 34.2OQ

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Question

Item 4
A 60-W light bulb radiates electromagnetic waves uniformly in all directions.
At a distance of 1.0 m from the bulb, the light intensity is Io, the average
energy density of the waves is up, and the rms electric and magnetic field
values are Eo and Bo, respectively.
Part A
At 2.0 m from the bulb, what is the light intensity?
►View Available Hint(s)
O Io
√√10
10
Submit
Part B
At 2.0 m from the bulb, what is the average energy density of the waves?
► View Available Hint(s)
O
uo
√
플라이
u
Submit
uo

Part C
At 2.0 m from the bulb, what is the rms magnetic field value?
► View Available Hint(s)
O Bo
Во
O Во
Во
Submit

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