If We Increase the Wavelength of the Light Used to Form

question 73

Multiple Choice

If we increase the wavelength of the light used to form a double-slit diffraction pattern:

• A) the width of the central diffraction peak increases and the number of bright fringes within the peak increases
• B) the width of the central diffraction peak increases and the number of bright fringes with the peak decreases
• C) the width of the central diffraction peak decreases and the number of bright fringes within the peak increases
• D) the width of the central diffraction peak decreases and the number of bright fringes within the peak decreases
• E) the width of the central diffraction peak increases and the number of bright fringes within the peak stays the same

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