A monochromatic beam of light has a frequency v = 3 2 π × 10 12 Hz and is propagating along the direction i ^ + j ^ 2 . It is polarized along the k ^ direction. The acceptance form the magnetic field is:

Step-by-step solution

E ^ × B ^ should have given direction of wave propagation, ⇒     K ^ × B ^ ∥   i ^ + j ^   2     K ^ × i ^ + j ^   2 = j ^ - - i ^ 2 = i ^ + j ^   2   ∥ i ^ + j ^   2     . Wave propagation vector K ^ should be along i ^ + j ^   2 .