Two sources of light of wavelength 710 nm are 9 m away from a pinhole of diameter 1 mm. how far apart must the sources be for their diffraction patterns to be resolved by rayleigh's criterion? answer in mm unit

7.8 mm

Explanation:

Wavelength = λ = 710 nm = 710×10⁻⁹ m

Distance between light sources =  L = 9 m

Diameter of pinhole = d = 1 mm = 1×10⁻³ m

Rayleigh Criterion

Distance between difraction pattern is 7.8 mm.

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