An electromagnetic wave has a maximum electric field strength of 340 V/m and a wavelength of 12m. a. What is the frequency of this wave?

An electromagnetic wave has a maximum electric field strength of 340 V/m and a wavelength of 12μm.

 a. What is the frequency of this wave? 

b. What is the intensity of this wave? 

c. Write an equation for the magnetic field strength of this wave in the form B(x,t)=B₀sin(kx−ωt). Be sure to include appropriate units. 

d. What is the magnetic field strength at x=0 m and t=2.0μs ?