MHT CET 2024 Physics question
A single slit diffraction pattern is formed with light of wavelength . The second secondary maximum for this wavelength coincides with the third secondary maximum in the pattern for light of wavelength ''. The value '' is
Answer: (B)
Solution
In single-slit diffraction the secondary maximum occurs at (equivalently ). For the second secondary maximum () of wavelength 6195 Å: . For the third secondary maximum () of wavelength :
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