Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai ( ) ̅ ( ) ( ) ( ) ( ) ( ) Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai () () ( ( )( )( ) ( ( ) ) ( ( ) ) ( )( )( ( ) ) ) ⁄ Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai ( ) ̅ ( ) ⁄ ( ) ⁄ Why 2? One standing wave is made by superposition of 2 waves due to 2 electronic oscillators in the same energy level. So it is multiplied by 2 here. Why ? Only positive values of ‘j’ are considered. To understand the ‘j’ space diagram: With respect to frequency of the radiation, the number of standing waves is also increasing quadratically. Consider a cork ball, which is a good example for a solid sphere with radius ‘r’. Solid sphere is composed of many hollow spheres, which are with radii varying linearly from zero to ‘r’. The surface areas of these hollow spheres are increasing quadratically. Every hollow sphere’s surfaces are made by number of very small points. Each and every point corresponds to one standing wave. Planck’s Law Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai Rayleigh Jeans did not consider a maximum frequency limitation for electromagnetic waves that are built inside the cavity with respect to the temperature. But Planck considered a maximum frequency limitation for the electromagnetic waves constructed within the cavity. Engineering Physics - PHY 1701; N. Punithavelan, Assistant Professor, Physics Division, VITChennai
