MHT CET 2025 Physics question
A single slit diffraction pattern is formed with light of wavelength 6384 Å. The second secondary maximum for this wavelength coincides with the third secondary maximum in the pattern for light of wavelength ‘’. The value of ‘’ is
Answer: (B)
Solution
In single-slit diffraction the th secondary maximum occurs at (approximately), for . For the second secondary maximum of the 6384 Å light: . For the third secondary maximum of the other light:
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