Physics 9702 · AS & A Level · The diffraction grating

The diffraction grating — practice question

Red light with one wavelength is sent through a diffraction grating. Bright spots appear on a screen, as shown. The red light is then changed to white light. Which diagram, drawn to the same scale, could show a possible pattern of bright light on the screen?

    Worked solution & mark scheme

    This 1-mark question has a full step-by-step worked solution and mark scheme.

    • Full mark scheme, point by point
    • Step-by-step worked solution
    • Write your answer & get it marked instantly by AI