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Question 23

From Physics HL Paper 1A (May 2025, TZ1)

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  1. Light of wavelength 5.8×10−7 m5.8 \times 10^{-7}\text{ m} is normally incident on a diffraction grating that has 400 000 lines m−1400\,000\text{ lines m}^{-1}.
    How many maxima can be observed with this diffraction grating?

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