The electric field of an EM wave in free space is given by E = 10 cos (10⁷t + kx) V/m where t and x are in sec and meter respectively. It can be inferred that:
(A) The wavelength λ is 188.4 m
(B) The wave number k is 0.33 rad/m
(C) The wave amplitude is 10 V/m
(D) The wave is propagating along the +x direction
Which of the following pairs of statements are correct?
1
(C) and (D)
2
(A) and (B)
3
(B) and (C)
4
(A) and (C)