Experiment of December 20, 2017:

The time to submit an answer is over. You can now view the solution of the experiment.

Solution video:

Experiment:

Question:

What does Ms. Santa see, when she wipes the suds from several holes in the ladle with her finger?

A) The light spots shining through the ladle holes with soapy film are larger than without soapy film.

B) The light spots shining through the ladle holes without soapy film are larger than with soapy film.

C) The light spots shining though the ladle holes with and without soapy film are the same size.

D) The light spots shining through the ladle holes form a starry pattern.