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The value of 1 Angstrom in \(\mu\mathrm{m}\) is

Question and options

The value of 1 Angstrom in μm\mu\mathrm{m} is
  1. 10−410^{-4}
  2. 10−610^{-6}
  3. 10−910^{-9}
  4. 10−310^{-3}

Answer and explanation

Correct answer: A - \(10^{-4}\)
1 Angstrom = 10−10 m10^{-10}\ \mathrm{m} and 1 micrometre = 10−6 m10^{-6}\ \mathrm{m}, so 1 A˚=10−10/10−6=10−4 μm1\ \mathrm{\mathring{A}} = 10^{-10}/10^{-6} = 10^{-4}\ \mu\mathrm{m}.

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