CUET · PHYSICS · PYQ PAPER 2023
An EMM wave travelling in vacuum is described by \(\overrightarrow{ E }= E _0 \sin ( k x -\omega t) \hat{ j }\) and \(\overrightarrow{ B }= B _0 \sin ( k x -\omega t) \hat{ k }\) Which of the following relation is true ?
- A \(E _0 k = B _0 \omega\)
- B \(E _0 \omega= B _0 k\)
- C \(E _0 B_0= k \omega\)
- D \(\frac{ B _0}{ E _0}=\sqrt{\omega / k }\)
Answer & Solution
Correct Answer
(A) \(E _0 k = B _0 \omega\)
Step-by-step Solution
Detailed explanation
\(c = E_0 / B_0\) \(c = \omega / k\) \(E_0 / B_0 = \omega / k\) \(E_0 k = B_0 \omega\)
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