Double slit Definition and 802 Threads

In a double slit experiment it is observed that the distance between adjacent maxima on a remote screen is 1cm. Whats happens to the distance between adjacent maxima when the slit separation is cut in half?

Greetings ! I see that my original thread called "Uncertain Gravity?" did not get the attention that I hoped it would (a level at least sufficient to answer the question I'm now separately posting here). So, the question: What does modern physics say about the double slit experiment...