A radio station emits the radiations of 400 kHz. The metre band of station is — Atomic Structure Chemistry Question

💡 Solution & Explanation

Metre band refers to the wavelength $\lambda = \frac{c}{\nu} = \frac{3 \times 10^8 \text{ m/s}}{400 \times 10^3 \text{ Hz}} = \frac{3000}{4} = 750$ m. Therefore, correct answer is B.