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A vernier calipers has 25 divisions on t...

A vernier calipers has 25 divisions on the vernier scale, An object is held between the external jaw of this instrument. If the zeroth division of the vernier scale is to the left 32nd division of the main scale and the 20th division of the vernier scale coincides with a main scale division, determine the measurement of the object.` (Take 1 M.S.D. = 0.5 mm )`

Text Solution

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Length or diameter = [difference of the observed readings on the two jaws with the object held] - [difference of the observed readings when the jaws are closed)
M.S.R. = 10.2 cm
V.C.D. = 6
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