Calculating E_0: Find Expression to Solve

[javak]

Homework Statement

Considering electromagnetic waves in an electric field E, I need to calculate E₀ but I can't find an expression to do this.

Homework Equations

Something in terms of E₀.

I know that $E=E_0$ at the particular instance being considered, hence why need to calculate $E_0$

The Attempt at a Solution

Despite looking online and in EM books I can't find a simple way to find E₀. I'm sure this can't be that difficult to do.. I thought there would just be a simple electrodynamics formula containing it. I'm not really sure of the definition of E₀.

 

[supratim1]

please complete your question. it gives no information at all.

 

[javak]

please complete your question. it gives no information at all.

Sure.. I've just re-edited it.