Planck's constant is h = 6.6 × 10^-34 Js. An x-ray photon has an energy of 6.6 × 10^-15 J. The frequency that corresponds to this energy is A) 4.4 × 10^-48 Hz. B) 10^-19 Hz. C) 10¹⁵ Hz. D) 10¹⁹ Hz.

Question

Quizplus · Accepted Answer

The frequency of a photon is given by the formula $ f = \frac{E}{h} $. Substituting the given values, $ f = \frac{6.6 \times 10^{-15} \text{ J}}{6.6 \times 10^{-34} \text{ Js}} = 10^{19} \text{ Hz} $.

Planck's Constant Is H = 6