Which of the following is the correct equation for magnetic field as a function of x, and t where a plane electromagnetic wave propagating in the x-direction has a wavelength of 5.0 mm? The electric field is in the y-direction and its maximum value is $$30\,V{{m}^{-1}}$$.

Question

TuteeHUB · Accepted Answer

$$B={{10}^{-5}}\,\sin \,\left[ \frac{\pi }{1.5\times {{10}^{-3}}}(ct-x) \right]$$

TuteeHUB · Answer

$$B={{10}^{-3}}\,\sin \,\left[ \frac{2\pi }{5\times {{10}^{-3}}}(ct-x) \right]$$

TuteeHUB · Answer

$$B={{10}^{-7}}\,\sin \,\left[ \frac{2\pi }{5\times {{10}^{-3}}}(ct-x) \right]$$

TuteeHUB · Answer

None of these

1.	Which of the following is the correct equation for magnetic field as a function of x, and t where a plane electromagnetic wave propagating in the x-direction has a wavelength of 5.0 mm? The electric field is in the y-direction and its maximum value is \[30\,V{{m}^{-1}}\].
A.	\[B={{10}^{-3}}\,\sin \,\left[ \frac{2\pi }{5\times {{10}^{-3}}}(ct-x) \right]\]
B.	\[B={{10}^{-7}}\,\sin \,\left[ \frac{2\pi }{5\times {{10}^{-3}}}(ct-x) \right]\]
C.	\[B={{10}^{-5}}\,\sin \,\left[ \frac{\pi }{1.5\times {{10}^{-3}}}(ct-x) \right]\]
D.	None of these
Answer» C. \[B={{10}^{-5}}\,\sin \,\left[ \frac{\pi }{1.5\times {{10}^{-3}}}(ct-x) \right]\]

Which of the following is the correct equation for magnetic field as a function of x, and t where a plane electromagnetic wave propagating in the x-direction has a wavelength of 5.0 mm? The electric field is in the y-direction and its maximum value is \[30\,V{{m}^{-1}}\].

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