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20 Nov 2021

Given information

Given Data :
 
The wavelength of the light  
 
Distance between the central maxima         
  
Distance between the two narrow slits  
 
Order of a fringe for central maxima   
 
The Distance between adjacent bright fringes on a screen  
 
 
 

Step-by-step explanation

Step 1.
To obtain constructive interference for a double-slit :
 
  
 
where 
 
  is the distance between the slits
 
   is the angle relative to the incident direction
 
and   is the order of the interference.
 
 

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