Exam problem clarification

Hi,
 

At the last group session when solving the 2013 final exam, I wrongly sketched a michelson interferometer instead of a michelson stellar interferometer - which are two different instruments. If this lead to confusion at the exam last friday, this will not count count against your final score. I very much apologize for any possible confusion!

Also, I hope the exam went well otherwise!

Cheers,

Ainar