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Recall the order of the electromagnetic spectrum.

Physics

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Part i· 2 steps

Identify A and B

  1. Recall the order of the electromagnetic spectrum.

    The electromagnetic spectrum, from highest frequency (shortest wavelength) to lowest frequency (longest wavelength), is: Gamma rays, X-rays, Ultraviolet, Visible light, Infrared, Microwaves, Radio waves.

  2. Identify A and B based on the given table.

    The table shows: Gamma rays, A, Ultraviolet, B, Infrared, Radio waves.
    Comparing this to the standard order:
    After Gamma rays comes X-rays, so A is X-rays.
    After Ultraviolet comes Visible light, so B is Visible light.

    • A: X-rays
    • B: Visible light

Part ii

State one use for each

  • Use for A (X-rays): Medical imaging (e.g., detecting bone fractures).
  • Use for B (Visible light): Illumination (e.g., for seeing) or photography.
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