MHT CET 2025 Physics question
In a single slit diffraction pattern, the distance between the plane of the slit and screen is 1.3 m. The width of the slit is 0.65 mm and the second maximum is formed at the distance of 2.6 mm from the centre of the screen. The wavelength of light used is
Answer: (C)
Solution
In single-slit diffraction the th secondary maximum satisfies , so the second maximum () has . For small angles , hence and
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