BBR and Plank

BBR and Plank

1. Thermal radiation produced by oscillating charged particles at surface of hot objects

   • Temperature will increase the acceleration/oscillating frequency of these charges
     • Therfore intensity should increase as frequency increases. Also EMR is continous
       • Experimental data at shorter wavelengths suggest it approaches zero instead of infinity. Longer wavelengths hold true.
         • Plank hypothesised that the smaller wavelengths are characterised by a large quantum state change. Hence the thermal energy required is not available resulting with intensity dropping to zero. Also remember peak radiation.
         • Remember to talk abou the three hypothesis