A red laser from the physics lab is marked as producing 632.8-nm light. When light from this laser falls on two closely spaced slits, an interference pattern formed on a wall several meters away has bright red fringes spaced 6.00 mm apart near the center of the pattern. When the laser is replaced by a small laser pointer, the fringes are 6.19 mm apart. What is the wavelength of light produced by the pointer?

The wavelength is  

Explanation:

From the question we are told that

   The wavelength of the red laser is  

    The spacing between  the fringe is  

   The spacing between  the fringe for smaller laser point  is  

      Generally the spacing between  the fringe is mathematically represented as

Here   is the distance to the screen

    and  d is the distance of the slit separation

Now for both laser red light light and  small laser  point  D and  d are same for this experiment

So

=>      

Where  is the wavelength produced by the small laser pointer

  So

=>      

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right