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A particular station of All India Radio, New Delhi, broadcasts on a frequency of 1,368 kHz (kilohertz).

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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 × 108 ms–1]

(1) 219.3 m

(2) 219.2 m

(3) 2192 m

(4) 21.92 cm

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Correct answer: (1) 219.3 m

Explanation:

λ = \(\frac{c}{v}\)

λ = \(\frac{3 \times 10^8}{1368 \times 10^3}\) = 219.298m

= 219.3 m

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