Answer
The amplitude of the magnetic field is $2.0\times 10^{-12}~T$
The frequency of the magnetic field is $30~GHz$
Work Step by Step
We can find the amplitude of the magnetic field:
$B = \frac{E}{c}$
$B = \frac{0.60\times 10^{-3}~V/m}{3.0\times 10^8~m/s}$
$B = 2.0\times 10^{-12}~T$
The amplitude of the magnetic field is $2.0\times 10^{-12}~T$
Since the frequency of the magnetic field is the same as the frequency of the electric field, the frequency of the magnetic field is $30~GHz$
