A) 140 \[N{{C}^{-1}}\]
B) 153 \[N{{C}^{-1}}\]
C) 163 \[N{{C}^{-1}}\]
D) 133 \[N{{C}^{-1}}\]
Correct Answer: B
Solution :
In harmonic electromagnetic wave in vacuum Speed of light \[(c)=\frac{E}{B}\] \[\Rightarrow \] \[E=(3\times {{10}^{8}})\times (510\times {{10}^{-9}}=153\,N{{C}^{-1}}\]
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