If the intensity of an electromagnetic wave is 80 mw/m2, what is the amplitude of the magnetic field of this wave? (c=3.0×108m/s, μ0=4π×10−7t⋅m/a, ε0=8.85×10−12c2/n⋅m2)

The the amplitude of the magnetic field of this wave is

Explanation:

Given that,

Intensity

We need to calculate the amplitude of the magnetic field

Using formula of intensity

Where, =Amplitude of an electromagnetic wave

c = speed of light

Put the value into the formula

Hence, The the amplitude of the magnetic field of this wave is  

i need the answer to this too but idk it ; -;