Light of wavelength 500nm shines on a pair of slits. This produces an interference pattern on a screen 2.00m behind the slits. Measuring from the center of the pattern, we find that the fifth dark spot is 4.00cm away. What is the spacing between the slits

The  value is  

Explanation:

From the question we are told that

   The  wavelength is  

    The  distance is of  the screen is  

    The  width of the fifth dark spot is

Generally the width of a fringe is mathematically represented as

=>        

=>        

=>        

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer