Rajesh conducts the following experiment. He cuts 3 cardboard pieces, each with a hole in the center, and aligns them in a straight line as shown in the image. He now puts a candle in front of the first cardboard piece and looks at it from behind the third piece. He is able to see the candle. He puts the third cardboard piece aside and now tries to look at the candle. But this time, he is not able to see it. What can be concluded from this experiment?

Harshit Singh , 2 Years ago

Grade 12th pass