We know that the index of refraction of materials can help identify those materials. When a light beam is shined onto a surface with an angle of incidence of 65.3°, the reflected ray is found to be completely polarized. (a) What is the index of refraction of the reflecting material?

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.