Exercice 5. Un prisme de verre de section principale ABC rectangle en B dont l'angle au sommet est A = 75° est
placé dans l'air. Un rayon monochromatique pour lequel le verre a pour indice n= 1,6328 arrive en
I sur la face AB sous l'incidence i au-dessous de la normale. Rappeler la condition sur l'angle i pour
que le rayon émerge par la face AC.

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above