Demonstrator ofrefraction & refection oflight

Exceot measune the refraction index of thequid. it ako can look into electrophoresiso light limes retraction, echo and totalretlect on trom any d recton by ditterent medium.
Main equlpment ltsts: ecuipped with 3 laser Pointers; Red light. green lght. purple light; 5 glass bnicks (2 sem-cinces, 2 tr angles, 1square ); Two chargers.
Dia:31 .5cm
Slze:35x16x48cm