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Distance between the first minima on either side of the single slit central maximum

The same question, asked 3 times: 11 May 2023 S1*, 11 May 2024 S2*, 25 Apr 2025 S1. Every wording below, oldest first.

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  1. Question 1

    11 May 2023 S1

    9
    In Fraunhofer diffraction pattern, slit width is 0.5 mm and screen is at 2 m away from the lens. If wavelength of light used is 5500 Å, then the distance between the first minimum on either side of the central maximum is (θ\theta is small and measured in radian)

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  2. Question 2

    11 May 2024 S2

    47
    A beam of light of wavelength 600 nm from a distant source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen 2 m away. The distance between the first dark fringe on either side of the central bright fringe is

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  3. Question 3

    25 Apr 2025 S1

    13
    In Fraunhofer diffraction pattern, slit width is 0.3 mm and screen is at 1.5 m away from the lens. If wavelength of light used is 4500Å4500\text{Å}, then the distance between the first minimum on either side of the central maximum is [θ\lbrack\theta is small and measured in radian.]

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