JAMB - Physics (2024 - No. 28)

The energy of light of frequency 2.0 x 10\(^{15}\)Hz is (h = 6.63 x 10\(^{-34}\)Js)

3.33 x 10\(^{-18}\)J

1.33 x 10\(^{-18}\)J

1.33 x 10\(^{-19}\)J

3.33 x 10\(^{-19}\)J

To calculate the energy of light, we can use the formula:

E = h x f

h = 6.63 x 10\(^{-34}\)Js

f = 2.0 x 10\(^{15}\)Hz

E = 6.63 x 10\(^{-34}\) x 2.0 x 10\(^{15}\) = 1.326 x 10\(^{-18}\)J