Bibliography:

1. Concepts of Modern physics by sir Arthur Beiser
2. Basics of Quantum mechanics by Ajoy Ghatak and S.Lokanathan
3. Matheen, Abdul. Heat Transfer Laboratory. City: Laxmi Publications, 2006.
4. Jiji, Latif. Heat Conduction. Berlin: Springer, 2009.

Weblilography:

1. en.wikipedia.org/wiki/Stefan%E2%80%93Boltzmann_constant
2. www.engineeringtoolbox.com/radiation-heat-transfer-d_431.html