A radio station is emitting the radiations of frequency Hz. If its frequency is doubled, — Atomic Structure Chemistry Question

💡 Solution & Explanation

Energy $E = h\nu$, so doubling frequency doubles the energy. Wavelength $\lambda = \frac{c}{\nu}$, so it halves. Wave number $\bar{\nu} = \frac{1}{\lambda} = \frac{\nu}{c}$, so it doubles. Therefore, correct answer is B.