Electromagnetic WavesHard
Question
The electric field associated with an e.m. wave in vacuum is given by 
40 cos (kz - 6 × 10-8t), where E, z and t are in volt/m, meter and seconds respectively. The value of wave vector k is
40 cos (kz - 6 × 10-8t), where E, z and t are in volt/m, meter and seconds respectively. The value of wave vector k isOptions
A.3 m-1
B.2 m-1
C.0.5 m-1
D.6 m-1
Solution
Wave velocity, 3 × 108 = 
k = 2 m/sec
k = 2 m/secCreate a free account to view solution
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