In Vacuum, the Components of an EM Wave Are E_y

question 45

Multiple Choice

In vacuum, the components of an EM wave are E_y = (50 V/m) cos [(5.00 m⁻¹) x + ωt], E_x = 0, and E_z = 0. What is ω?

• A) 1.50 × 10⁹ rad/s
• B) l.20 × 10⁹ rad/s
• C) 1.00 × 10⁹ rad/s
• D) 8.00 × 10⁸ rad/s
• E) More information is needed.

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