Category > General Science MCQs for WBCS

Q. Which one of these is not a measuring instrument?

Answer : Picometer
Explanation:
  • A picometer is a unit of measurement of length. A picometer (pm) is a derived metric measurement unit of length. The metric unit prefix pico means one trillionth, or one (1) with eleven (11) nulls in front of it, i.e. 0.000,000,000,001 or 1×10-12. That makes one picometer equal to one trillionth of a meter.
  • Hygrometer, an instrument used in meteorological science to measure the humidity or amount of water vapor in the air.
  • A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure.
  • A thermometer is a device that measures temperature or a temperature gradient (the degree of hotness or coldness of an object).

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