The Frequency of a Photon That Has an Energy of 3.7

Multiple Choice

The frequency of a photon that has an energy of 3.7 × 10^{- 18} J is s^{- 1}.

A) 5.6 × 10¹⁵
B) 1.8 × 10^{- 16}
C) 2.5 × 10¹⁵
D) 5.4 × 10^{- 8}
E) 2.5 × 10^{- 15}