A Sinusoidal Electromagnetic Wave Is Propagating in Vacuum $0.45 \mathrm {~W} / \mathrm { m } ^ { 2 }$

question 162

Short Answer

A sinusoidal electromagnetic wave is propagating in vacuum. At a given point and at a particular time the electric field is in the +x direction and the magnetic field is in the -y direction, and at that point the intensity of the wave is $0.45 \mathrm {~W} / \mathrm { m } ^ { 2 }$ $\left( c = 3.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } , \right.$ $\mu _ { 0 } = 4 \pi \times 10 ^ { - 7 } \mathrm {~T} \cdot \mathrm { m } / \mathrm { A }$ $\left. \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \mathrm { C } ^ { 2 } / \mathrm { N } \cdot \mathrm { m } ^ { 2 } \right)$ (a)What is the direction of propagation of the wave?
(b)What is the electric field amplitude at the given point?

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Definitions:

Universal Symbols

Universal symbols refer to icons or signs that are widely recognized across different cultures and societies, conveying particular messages or information without the need for text.

Symbolic Concepts

Ideas or things that represent specific meanings, values, or ideas beyond their literal sense, often used in marketing to convey messages about a brand.

Demographic Pattern

Demographic pattern refers to the statistical characteristics and trends of a specific population, including age, gender, income, and education, which can influence consumer behavior and market dynamics.

Psychographics

Characteristics of consumers, such as lifestyle, values, and attitudes, that impact their buying behaviors.