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The number of waves that moves a fixed point in unit time is known as frequency.

$f=\frac{1}{T}$or$\frac{蝇}{2\mathrm{蟺}}$

Where,T =Time period in seconds and$蝇$ is angular frequency in .

The frequency, wavelength, and speed of light of any wave are related by the wavelength-frequency relationship.

The wavelength-frequency relationship is:

$c=位f$

Where, is the speed of light which is equal to$3脳{10}^{8}m/s.位$ , is the wavelength and is the frequency.

The wavelength is inversely proportional to the frequency.

$位=\frac{c}{f}$or$\frac{v}{f}$

Where, v is velocity of wave in .

The relation between wave number and wavelength is:

$k=\frac{2\mathrm{蟺}}{位}$

Where, k is wavenumber in .

The formula used to determine the amplitude of electric and magnetic fields of the wave are:

$\begin{array}{r}{E}_{max}=\sqrt{\frac{2I}{{蔚}_{0}C}}\\ B_{max}=\frac{E_{max}}{c}\end{array}$

The equations of sinusoidal electromagnetic wave for electric and magnetic field are:

$\begin{array}{r}\stackrel{鈫�}{E}=E_{max}\cos 鈦�(kx鈭�蝇t)\\ \stackrel{鈫�}{B}=B_{max}\cos 鈦�(kx鈭�蝇t)\end{array}$

Given that,$E=(375\mathrm{V}/\mathrm{m})\cos 鈦�\left[\left(1.99脳{10}^7\mathrm{rad}/\mathrm{m}\right)\mathrm{x}+\left(5.97脳{10}^{15}\mathrm{rad}/\mathrm{s}\right)\mathrm{t}\right]$

So,$E_{max}=375\mathrm{V}/\mathrm{m}$

The formula used to determine the amplitude of electric and magnetic fields of the wave are:

$B_{max}=\frac{E_{max}}{c}$

Substitute the values of variables

$\begin{array}{r}{B}_{max}=\frac{375}{3脳{10}^8}\\ =1.25脳{10}^{鈭�6}\mathrm{T}\end{array}$

Hence, the amplitudes of the electric and magnetic fields of the wave are 375 V/m and$1.25脳{10}^{-6}T$ respectively.

From equation$E=(375\mathrm{V}/\mathrm{m})\cos 鈦�\left[\left(1.99脳{10}^7\mathrm{rad}/\mathrm{m}\right)\mathrm{x}+\left(5.97脳{10}^{15}\mathrm{rad}/\mathrm{s}\right)\mathrm{t}\right]$

The values of angular frequency is and the wavenumber is .

The frequency of wave is:

$\begin{array}{r}f=\frac{蝇}{2蟺}\\ =\frac{5.97脳{10}^{15}}{2蟺}\\ =9.50脳{10}^{14}\mathrm{Hz}\end{array}$

The wavelength of wave is:

$\begin{array}{r}位=\frac{2蟺}{k}\\ =\frac{2蟺}{1.99脳{10}^7}\\ =3.15脳{10}^{鈭�7}\mathrm{m}\end{array}$

Hence the frequency and wavelength of the wave are$9.50脳{10}^{14}Hz$ and$3.15脳{10}^{-7}m$ respectively.

The period of wave is:

$\begin{array}{r}T=\frac{1}{f}\\ =\frac{1}{9.50脳{10}^{14}}\\ =1.052脳{10}^{鈭�15}\mathrm{s}\end{array}$

The speed of the wave is:

$\begin{array}{r}C=f位\\ =\left(9.50脳{10}^{14}\right)\left(3.15脳{10}^{鈭�7}\right)\\ =3脳{10}^8\mathrm{m}/\mathrm{s}\end{array}$

Hence, the period and speed of wave are$1.05脳{10}^{-15}s$ and$3脳{10}^{8}m/s$ respectively.