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JEE Main 2026 · Session 2 · Shift 1 · Physics

Question 46

In single slit diffraction pattern, the wavelength of light used is 628 nm and slit width is 0.2 mm, the angular width of central maximum is α×10⁻² degrees. The value of α is ____.

Answer: 36

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Official source

https://cdnbbsr.s3waas.gov.in/s3f8e59f4b2fe7c5705bf878bbd494ccdf/uploads/2026/04/202604092096865379.pdf

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Question paper, page 19.