Physics

Problem

Take

\mu_0 = 4\pi\times10^{-7}\,\text{H m}^{-1}

and

\epsilon_0 = 8.85\times10^{-12}\,\text{F m}^{-1}

. Calculate the speed of electromagnetic waves in vacuum (give the nearest value). a)

2.65\times10^{8}\,\text{m s}^{-1}

8.99\times10^{16}\,\text{m s}^{-1}

3.00\times10^{8}\,\text{m s}^{-1}

9.49\times10^{7}\,\text{m s}^{-1}