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What is the intensity of an electromagne...

What is the intensity of an electromagnetic wave in terms of electric and magnetic field?

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To find the intensity of an electromagnetic wave in terms of the electric field (E) and the magnetic field (B), we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Intensity**: The intensity (I) of an electromagnetic wave is defined as the power per unit area. It can be expressed in terms of the electric field (E) and the magnetic field (B). 2. **Using the Formula for Intensity**: ...
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Knowledge Check

  • Intensity of electromagnetic wave will be

    A
    `I=cmu_(0)B_(0)^(2)//2`
    B
    `I=c epsilon_(0)B_(0)^(2)//2`
    C
    `I=B_(0)^(2)//cmu_(0)`
    D
    `I=E_(0)^(2)//2cepsilon_(0)`

  • In an electromagnetic wave, electric field E and magnetic field B are

    A
    Mutually perpendicular to each other
    B
    bisect to each other
    C
    both (A) and (B)
    D
    none of these

  • The ratio of contributions made by the electric field and magnetic field component to the intensity of an electromagnetic wave is : ( c = speed of electromagnetic waves)

    A
    `1:1`
    B
    `1: c`
    C
    `1:c^2`
    D
    `c:1`

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