My mind is completely blanking on the this question. Could someone attempt to explain how to do this as if talking to a simpleton (me)
A third similar laser emits light with intensity 1.5Wm^-2
Work out the amplitude of the light.
It is the sequel to this
One laser emits light that has amplitude 200Vm^-1 and intensity 0.26Wm^-2
Another laser emits light that has amplitude 1 ,300Vm^-1
In all other respects it is identical.
And the answer to this is 0.59Wm^-2