The Energy of a Photon That Has a Frequency of 8.21

Multiple Choice

The energy of a photon that has a frequency of 8.21 × 10¹⁵ s^{- 1} is _ _ J.

A) 1.99 × 10^{- 25}
B) 1.26 × 10^{- 19}
C) 8.08 × 10^{- 50}
D) 5.44 × 10^{- 18}
E) 1.24 × 10⁴⁹