MHT CET Physics question
A parallel beam of light of wavelength 'λ' is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of incident beam. At the second minimum of the diffraction pattern, the phase difference between the rays coming from the two edges of slit is [MHT-CET 2020]
Answer: (C)
Solution
At the nth minimum , so for the path difference is and the phase difference is ;
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