anonymous
  • anonymous
what the relative uncertainity of an object of length 2 cm what is the the relative uncertainity is we use the above meter
Physics
schrodinger
  • schrodinger
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anonymous
  • anonymous
meter stick = o.1cm vernier = 0.01 cm micrometer = 0.001cm relative uncertainity for 2cm will be for meter stick = (0.1/2 )*100% = 5% vernier = (0.01/2)*100% = 0.5% micrometer = (0.001/ 2)*100% = 0.05%
anonymous
  • anonymous
dont i have to convert cm to mm
anonymous
  • anonymous
for the 2

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anonymous
  • anonymous
no i had already worked the precisions in cm
anonymous
  • anonymous
another person told me if you measure it to be 2cm with any of the above instruments then the measurement will look like this 2cm±precision or 2cm±uncertainty so report plus or minus your precision as your uncertainty.
anonymous
  • anonymous
yea thatz true
anonymous
  • anonymous
so how do i use what this person said
anonymous
  • anonymous
so 4 meter stick= 2cm± 0.05 vernier = 2cm± 0.005 miocrometer= 2cm± 0.0005 this means that measurements using a micrometer are more precise and accurate
anonymous
  • anonymous
what i had given before was the % precisions using the various instruments.
anonymous
  • anonymous
what is the precision of these instruments

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