The frequency of an electromagnetic radiation which makes waves per 50 cm is — Atomic Structure Chemistry Question

💡 Solution & Explanation

Wavelength $\lambda = \frac{0.5 \text{ m}}{2 \times 10^6} = 2.5 \times 10^{-7}$ m. The frequency $\nu = \frac{c}{\lambda} = \frac{3 \times 10^8}{2.5 \times 10^{-7}} = 1.2 \times 10^{15}$ Hz. Therefore, correct answer is A.