Answer to Question #152113 in Optics for Mana

Question

How is the distance between interference fringes affected by the separation between the slits of Young experiment? Can visible light produce interference fringes? explain

Answer 1

Answer

In Young double slits experiment fringe width is given by

$\beta=\frac{D}{d\lambda}$

Where d is seperation between slits

According above equation if we increase d fringe width decreases and vice versa.

Yes, The fringes are presence or absence of light. In other words, change in intensity and distribution. Not a different color.