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Question

What is the least count of the traveling microscope?


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Solution

Determine the least count of the traveling microscope.

  • The least count of an instrument is the smallest measurement that can be taken properly from that instrument.
  • The traveling microscope is a compound microscope with a vertical scale. It has a vernier scale that may be adjusted up and down the main scale.
  • Here as result, the smallest division on the traveling microscope's primary scale is =0.5mm.
  • The number of divisions on the vernier scale is 50.
  • The traveling microscope's lowest count may be computed as Least count (LC) = smallest division on the main scale divided by the numeral of divisions on the vernier scale

=0.550=0.01mm=0.001cm

Hence, the least count of the traveling microscope is 0.001cm.


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