$($a$)$

How many minutes does it take a photon to travel from the Sun to the Earth?

min

$($b$)$

What is the energy in eV of a photon with a wavelength of $468$ nm$?$

eV

$($c$)$

What is the wavelength $($in m$)$ of a photon with an energy of $1\mathrm{.}03$ eV$?$

m