Question:medium
The electric field of an electromagnetic wave travelling through a medium is given by
\[
\vec{E}(x,t)=25\sin(2\times10^{15}t-10^{7}x)\,\hat{n}.
\]
Then the refractive index of the medium is ________.
(All given measurements are in SI units)
The electric field of an electromagnetic wave travelling through a medium is given by
\[
\vec{E}(x,t)=25\sin(2\times10^{15}t-10^{7}x)\,\hat{n}.
\]
Then the refractive index of the medium is ________.
(All given measurements are in SI units)
Show Hint
Always compare the given wave equation with \( \sin(\omega t-kx) \) to directly read \( \omega \) and \( k \).
Updated On: Mar 25, 2026
- \(1.7\)
- \(1.5\)
- \(1.2\)
- \(2\)
Show Solution
The Correct Option is B
Solution and Explanation
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