Consider an electromagnetic wave travelling in a vacuum with an electric field given by E(y, t) = (3 × 106 [V/m]) î cos [ky + (2.7 × 10¹5 [rad/s]) t] What is the direction, frequency, and wavelength of the travelling wave? O A. The EM wave is travelling along the k direction with frequency 4.8 x 105 Hz and wavelength 6.3 × 10² m. B. The EM wave is travelling along the j direction with frequency 1.7 × 10¹6 Hz and wavelength 1.8 × 10-8 m. O C. The EM wave is travelling along the direction with frequency 4.3 × 10¹4 Hz and wavelength 7.0 × 10-7 m. O D. The EM wave is travelling along the i direction with frequency 2.7 × 10¹5 Hz and wavelength 1.1 × 10-7 m.
Consider an electromagnetic wave travelling in a vacuum with an electric field given by E(y, t) = (3 × 106 [V/m]) î cos [ky + (2.7 × 10¹5 [rad/s]) t] What is the direction, frequency, and wavelength of the travelling wave? O A. The EM wave is travelling along the k direction with frequency 4.8 x 105 Hz and wavelength 6.3 × 10² m. B. The EM wave is travelling along the j direction with frequency 1.7 × 10¹6 Hz and wavelength 1.8 × 10-8 m. O C. The EM wave is travelling along the direction with frequency 4.3 × 10¹4 Hz and wavelength 7.0 × 10-7 m. O D. The EM wave is travelling along the i direction with frequency 2.7 × 10¹5 Hz and wavelength 1.1 × 10-7 m.
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![Consider
an electromagnetic wave
travelling
in a vacuum with an electric field
given by
E(y, t) = (3 × 106 [V/m]) i cos [ky + (2.7 x 10¹5 [rad/s]) t]
What is the direction, frequency, and wavelength
of the travelling wave?
O A. The EM wave is travelling along the k
direction with frequency 4.8 x 105 Hz
and wavelength 6.3 × 10² m.
B. The EM wave is travelling along the j
direction with frequency
1.7 x 10¹6 Hz and wavelength
1.8 × 10-8 m.
O C. The EM wave is travelling along the
direction with frequency
4.3 × 10¹4 Hz and wavelength
7.0 × 10-7 m.
O D. The EM wave is travelling along the i
direction with frequency
2.7 × 10¹5
10¹5 Hz and wavelength
1.1 x 10-7 m.
×](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F42d52dcb-5d26-47a3-b360-5da9f53a46a5%2Ff8512cce-24da-429f-b3e7-271e2e125a01%2Fhhyg0sc_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Consider
an electromagnetic wave
travelling
in a vacuum with an electric field
given by
E(y, t) = (3 × 106 [V/m]) i cos [ky + (2.7 x 10¹5 [rad/s]) t]
What is the direction, frequency, and wavelength
of the travelling wave?
O A. The EM wave is travelling along the k
direction with frequency 4.8 x 105 Hz
and wavelength 6.3 × 10² m.
B. The EM wave is travelling along the j
direction with frequency
1.7 x 10¹6 Hz and wavelength
1.8 × 10-8 m.
O C. The EM wave is travelling along the
direction with frequency
4.3 × 10¹4 Hz and wavelength
7.0 × 10-7 m.
O D. The EM wave is travelling along the i
direction with frequency
2.7 × 10¹5
10¹5 Hz and wavelength
1.1 x 10-7 m.
×
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