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Question

An electromagnetic wave going through vacuum is described by
E=E0sin (kxωt)
B=B0sin (kxωt).
Which of the following is true ?

A
E0B0=ωk
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B
E0ω=B0k
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C
E0k=B0ω
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D
E0=B0
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Solution

The correct option is C E0k=B0ω
The speed of light in vacuum is given by,

C=E0B0 and C=ωk

E0B0=ωk

E0k=B0ω

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hence, (C) is the correct answer.

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