The electric field associated with an electromagnetic wave in vacuum is given by {E}={i} ^{\^}40 \cos (k z-6 \\times10^{8} t), where E, z and tare Volt / {m}, metre and second respectively. The value of wave vector k is

AMU Engineering 2017 solved paper Solved Paper

Section: Physics

Question : 28 of 150

Marks: +1, -0

The electric field associated with an electromagnetic wave in vacuum is given by E=

40‌cos(kz−6×108t), where E,z and tare Volt /m, metre and second respectively. The value of wave vector k is

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