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Question

1 μm is :


A

10-6 m

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B

10-9 m

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C

10-10 m

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D

10-3 m

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Solution

The correct option is A

10-6 m


The correct option is A:

Explanation:

  1. 1 μm or 1micrometer is equal to 10-6 m i.e. one-millionth of a meter.
  2. The next smallest unit after a micrometer is a nanometer. 1nm or 1nanometer is equal to 10-9 m i.e. one billionth of a meter.
  3. 1 Angstrom or 1Å is equal to 10-10 m. Angstrom(Å) is a unit of length.
  4. 1 millimeter or 1mm is equal to 10-3 m. A Millimeter(mm) is a unit of length.

Final answer:

Hence, 1 μm is 10-6 m.


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