The electric field of an electromagnetic...

The electric field of an electromagnetic wave in free space is given by – `vec(E )=10cos(10^(7)t+kx)hat(j) V//m`, where t and x are in seconds and metres respectively. It can be inferred that -
(a) The wavelength `lambda` 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 + x direction Which one of the following pairs of statements is correct ?

(c ) & (d)

(a ) & (b)

(b ) & (c )

(a ) & ( c)

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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?

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