A monochromatic light illuminates a double slits system with a slit separation, d =0.3 mm. The maximum of the first order occurs at y = 4.0 mm on a screen placed at 1.0 m from the slits. Find the:

Question

a)Wavelength
b)Distance between the central maximum and the minimum of the third order on the screen.
c)Separation between third maxima and first minima
d)Angle between third maxima and first minima.