A radio station broadcasts at a frequency of 400KHz. If the speed of the wave is 3.0 ×10-8 ms-1, calculate the wavelength of the radio wave.
-
A.
1.3 × 102m -
B.
3.0 × 102m -
C.
2.4 × 102m -
D.
5.0 × 102m -
E.
7.5 × 102m
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