To calculate the energy of light, we can use the formula:
E = h x f
h = 6.63 x 10−34^{-34}−34Js
f = 2.0 x 1015^{15}15Hz
E = 6.63 x 10−34^{-34}−34 x 2.0 x 1015^{15}15 = 1.326 x 10−18^{-18}−18J
