Two sources of light of wavelength 720 nm are 10 m away from a pinhole of diameter 1.2 mm. How far apart must the sources be for their diffraction patterns to be resolved by Rayleigh's criterion?

The value is      

Explanation:

From the question we are told that

    The wavelength of each source is  

     The distance from the pinhole

     The diameter is

Generally from Rayleigh's criterion  we have that the distance between the sources of light for their diffraction patterns is mathematically represented as '

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