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Q.

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 × 10⁸ ms^-1]

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a

2192 m

b

219.3 m

c

21.92 cm

d

219.2 m

answer is B.

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Detailed Solution

$λ = \frac{C}{V} = \frac{3 \times 10^{8} {ms}^{- 1}}{1368 \times 10^{3} S^{- 1}} = 219 .3 m$

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