Light: the Quantum Model

These questions cover the quantum light skills that school trial papers test again and again: black body curves and Wien's law, Planck's quanta, photon energy in joules and electron volts, photons per second, the photoelectric effect, stopping voltage and reading $K_{max}$ graphs. Use $h=6.626\times 10^{-34}$ J s, $c=3.00\times 10^8$ m/s, $q_e=1.602\times 10^{-19}$ C, $m_e=9.109\times 10^{-31}$ kg and $b=2.898\times 10^{-3}$ m K. They start easy and get harder. Stuck? Tap Show a hint for one step at a time.