#### The electric field part of an electromagnetic wave in a medium is represented by . The wave is : Option 1) Moving along x direction with frequency Hz and wave length 100m. Option 2) Moving along x direction with frequency Hz and wave length 200m. Option 3) Moving along - x direction with frequency Hz and wave length 200m. Option 4) Moving along y direction with frequency Hz and wave length 200m.

Wave Equation -

E is in y-z plane

- wherein

E - Electric field at (x,t)

Eo - Electric field amplitude

w= Angular frequency

c= Speed of light in vacuum

Compare with standard equation it is travelling along +x direction

Option 1)

Moving along x direction with frequency Hz and wave length 100m.

This solution is incorrect

Option 2)

Moving along x direction with frequency Hz and wave length 200m.

This solution is correct

Option 3)

Moving along - x direction with frequency Hz and wave length 200m.

This solution is incorrect

Option 4)

Moving along y direction with frequency Hz and wave length 200m.

This solution is incorrect