2 points The electric field of an electromagnetic wave in free space is given by Ē 10 cos(10' + + kx)ị V/m, where t and x are in seconds and metres respectively. It can be inferred that (a) The wavelength 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? (1) (c) & (d) (2) (a) & (b) (3) (b) & (c) a &
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2 points The electric field of an electromagnetic wave in free space is given by Ē 10 cos(10' + + kx)ị V/m, where t and x are in seconds and metres respectively. It can be inferred that (a) The wavelength 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? (1) (c) & (d) (2) (a) & (b) (3) (b) & (c) a &
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