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The screw gauge is used to measure-

  1. Length
  2. Mass 
  3. Density 
  4. None of the above

Answer (Detailed Solution Below)

Option 1 : Length
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Detailed Solution

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CONCEPT:

  • The instrument which is used to measure the length is called length measuring device.
    • The Screw gauge, meter scale, and Vernier caliper are generally the lengths measuring instrument.
  • Screw gauge: A length measuring device that is mainly used to measure the diameter of a thin wire is called screw gauge.

EXPLANATION:

  • The screw gauge is used to measure the length(Diameter is also a type of length). So option 1 is correct.
  • We can't measure mass and density by using a screw gauge.

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