NEET PhysicsClass 12Nature of electromagnetic wavesHardSingle correct

The magnetic field of an em wave in vacuum is B_z = (4.0 × 10⁻⁸ T) sin(1000x + 3.0 × 10¹¹ t), with x in metres and t in seconds. In which direction does the wave travel, and what is the amplitude of its electric field? (c = 3.0 × 10⁸ m s⁻¹)

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The magnetic field of an em wave in vacuum is B_z = (4.0 × 10⁻⁸ T) sin(1000x + 3.0 × 10¹¹ t), with x in metres and t in seconds. In which direction does the wave travel, and what is the amplitude of its electric field? (c = 3.0 × 10⁸ m s⁻¹)

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