Posted by
**Sydney** on
.

A Young's double slit has a slit separation of 2.50x10 raised to the -5th power m on which a monochromatic light beam is directed. The resultant bright fringes on a screen 1.00 m from the double slit are separated by 2.30x10 raised to the -2nd power m. What is the wavelength of this beam? (1nm = 10 raised to the -9th power m)