MHT CET 2025 Physics question
In a single slit diffraction experiment, slit of width 'a' is illuminated by light of wavelength '' and the width of the central maxima in diffraction pattern is measured as 'y'. When half of the slit is covered and illuminated by light of wavelength , the width of the central maximum in diffraction pattern becomes
Answer: (C)
Solution
The width of the central maximum in single-slit diffraction is . Covering half of the slit makes the effective width , and the wavelength becomes . So
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