Question

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, $\left.c=3.0 \times 10^{8} ms ^{-1}\right]$

• A. 219.3 m
• B. 219.2 m
• C. 2192 m
• D. 21.92 cm

Answer 1

Answer: (A)

219.3 m

Answer 2

$\lambda=\frac{c}{V}$ $=\frac{3 \times 10^{8} ms ^{-1}}{1368 \times 10^{3} S ^{-1}}$ $=219.3\, m$