a black cloth a piece of aluminum a sheet of paper a glass prism
I gave my students this multiple choice question: A laser beam is aimed at four different objects. Through which of these objects will the laser beam pass and be refracted?

Only one answer is correct among these 4 choices:
- a black cloth
- a piece of aluminum
- a sheet of paper
- a glass prism

Could you tell me which one is correct?

a glass prism