Question

13. What is the photon energy associated with visible light with a wavelength of 4.25x10^-7 m?

(Your answer will be in eV)

Answer 1

`\\ \sf\bull\longmapsto E=hv`

`\\ \sf\bull\longmapsto E=(hc)/(\lambda)`

`\\ \sf\bull\longmapsto E=(6.626* 10^(-34)Js* 3* 10^8ms^(-1))/(4.25* 10^(-7)m)`

`\\ \sf\bull\longmapsto E=(19.878* 10^(-26)Jm)/(4.25* 10^(-7)m)`

`\\ \sf\bull\longmapsto E=4.677* 10^(-19)J`

`\\ \sf\bull\longmapsto E=4677* 10^(-16)J`

`\\ \sf\bull\longmapsto E=4677eV`