Question

Statement 1: An em wave going through vaccum is described as $E=E_{0} \sin (k x-\omega t)$ and $B=B_{0} \sin (k x-$ $\omega t$ ) has $\omega E_{0}=k B_{0}$
Statement 2 : For an em wave, $c=E_{0} / B_{0}$.

• A. Statement $-1$ is true, Statement $-2$ is false
• B. Statement $-1$ is false, Statement $-2$ is true
• C. Statement $-1$ is true, Statement $-2 $ is true and Statement $-2$ is a correct explanation for Statement $-1.$
• D. Statement $-1$ is true, Statement $-2$ is true but Statement $-2$ is not a correct explanation for Statement $-1.$

Answer 1

Answer: (B)

Statement $-1 $ is false, Statement $- 2$ is true
As $\frac{E_{0}}{B_{0}}=c=\frac{\omega}{k} \Rightarrow k E_{0}=\omega B_{0}$