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The diameter of a spherical bob, when measured with vernier callipers yielded the following values: 3.33 ~cm , 3.32 ~cm , 3.34 ~cm , 3.33 ~cm and 3.32 ~cm . The mean diameter to appropriate significant figures is:

Options

  1. A3.33 ~cm
  2. B3.32 ~cm
  3. C3.328 ~cm
  4. D3.3 ~cm

Correct answer

A. 3.33 ~cm

Step-by-step solution

aligned Mean diameter & = [3.33 ~cm +3.32 ~cm +3.34 ~cm +3.33 ~cm +3.32 ~cm ] 5 & =3.328 ~cm aligned After rounding off to 2 decimal places. Final mean diameter =3.33 ~cm

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