An optical beam shines through 2 slits in a panel. Find the size of the slit.

Givens:

- The screen is 0.2m away from the panel.

- The wavelength of the light is 0.3x10^-6m.

- The distance between the bright spots is 0.2x10^-3m.

- The distance from the central bright spot to the broad minimum is 1.0x10^-3m.

I think you need to use all the givens to find the size of the slit.