NEET2021Chemistry-Waves
NEET 2021 Chemistry Electromagnetic Waves MCQ Question
Type: MCQ-numerical-Medium-Class 11
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]
A
219.3 m
B
219.2 m
C
2192 m
D
21.92 cm
Correct Answer
Option A
Detailed Explanation
Wavelength is calculated using the formula λ = c/f. Substituting the given values, λ = 3.0 × 10⁸ / 1.368 × 10³ = 219.3 m.
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