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A particular station of All India Radio, New Delhi, broadcasts on a frequency of 1,368 kHz (kilohertz). The wavelength of the electromagnetic radiation emitted by the transmitter is: [speed of light, $c=3.0\times10^8\ ms^{-1}$]
A
219.2 m
B
2192 m
C
21.92 cm
D
219.3 m
Detailed Solution
$\lambda = \frac{c}{\nu} = \frac{3 \times 10^8}{1368 \times 10^3} = 219.298$ m $\approx 219.3$ m