The electric field on an electromagnetic wave in free space is given by `E=10 cos (10^7t+kx) hatj V//m`, Where t and x are in seconds and metres respectively. It can be inferred that (1) the wavelength `lambda` is `188.4m`. (2) the wave number k is `0.33rad//m` (3) the wave amplitude is `10V//m` (4) the wave is propagating along +x direction. which one of the following pairs of statement is correct?A. (a) and (b)B. (b) and (c )C. (a) and (c )D. (c ) and (d)

The electric field on an electromagnetic wave in free space is given b

1.	The electric field on an electromagnetic wave in free space is given by `E=10 cos (10^7t+kx) hatj V//m`, Where t and x are in seconds and metres respectively. It can be inferred that (1) the wavelength `lambda` is `188.4m`. (2) the wave number k is `0.33rad//m` (3) the wave amplitude is `10V//m` (4) the wave is propagating along +x direction. which one of the following pairs of statement is correct?A. (a) and (b)B. (b) and (c )C. (a) and (c )D. (c ) and (d)
Answer» Correct Answer - C

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