Question

A sinusoidal electromagnetic wave having a magnetic field
of amplitude and awavelength of 432 nm is traveling in
the direction through empty space. (a) What is the frequency
of thiswave? (b) What is the amplitude of the associated electric
field? (c) Write the equations for the electric and magnetic fields
as functions of x and t in the form of Equations

Answer 1

@ajprincess

Answer 2

@ganeshie8
@hba

Answer 3

@jim_thompson5910
@Nurali

Answer 4

@experimentX
@timo86

Answer 5

@timo86m

Answer 6

I just have hard time finding the amplitude!
the frequency will be c/wavelength

Answer 7

@mashy

Answer 8

We can find the frequency of the wave using \[c=\lambda f\]
We can also find the amplitude of the electric field by using\[c=\frac{E}{B}\]

Answer 9

With E and B being the maximum amplitudes of the electric and magnetic fields.

Answer 10

but I don't have E & B

Answer 11

what's E& B

Answer 12

You should have the amplitude for B (It's worded like you do, but you don't put the actual numerical value)

Answer 13

oh yeah but do I convert it since its 125u

Answer 14

@vandreigan

Answer 15

@wio I just wanna know if I have to convert 1.25u

Answer 16

B's amplitude shoul be in teslas (T) to use the formula.

It seems there is missing information in your original post, probably due to copy-paste problems.

Answer 17

lol