Page 1 of 1

A very thin sheet of plastic (n=1.55) covers one slit of a double-slit apparatus illuminated by 640 nm light. The center

Posted: Sun May 22, 2022 10:05 am
by answerhappygod
A very thin sheet of plastic (n=1.55) covers one slit of a
double-slit apparatus illuminated by 640 nm light. The center point
on the screen, instead of being a maximum, is dark. What is
the (minimum) thickness of the plastic?