The energy of a photon that has a frequency of 1.821 × 10¹⁶ s^-1 is ________ J. A)5.44 × 10^-18 B)1.99 × 10^-25 C)3.49 × 10^-48 D)1.21 × 10^-17 E)5.46 × 10^-24

Question

Quizplus · Accepted Answer

We can use the equation E = hf, where h is Planck's constant (6.626 x 10^-34 J.s), f is the frequency in Hz, and E is the energy in Joules.

E = (6.626 x 10^-34 J.s)(1.821 x 10^16 Hz) = 1.21 x 10^-17 J

Therefore, the energy of the photon is 1.21 x 10^-17 J, which matches with option D.

The Energy of a Photon That Has a Frequency of 1.821