The range of wavelength for $X$-rays is from . . . . . . .

  • A
    $1 \, mm$ to $700 \, nm$
  • B
    $700 \, nm$ to $400 \, nm$
  • C
    $400 \, nm$ to $1 \, nm$
  • D
    $1 \, nm$ to $10^{-3} \, nm$

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