One angstrom is equal to

Options

  • A. 10⁻⁸ metre
  • B. 10⁻¹⁰ metre
  • C. 10⁻¹² metre
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

B. 10⁻¹⁰ metre

Detailed Explanation

One angstrom = 10⁻¹⁰ metre. It is a very small unit of length used especially in atomic and molecular science. For comparison, 1 nanometre = 10⁻⁹ metre = 10 Å, while 1 picometre = 10⁻¹² metre. Remembering these relationships is useful for physics and chemistry questions involving atomic dimensions.
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BPSC TRE 4 General Science practice set 4

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