Question

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Find the least count of a serew guage whose head scale is divided into 100 divisions, if it moves 5mm distance
when the head is rotated through 5 revolutions
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Answer 1

Answer:

0.01mm

Explanation:

pitch =Distance moved in the pitch scale

------------------------------------------------

number of rotation given

5

pitch= ----- = 1 mm

5

pitch

Least count. = ..................................................

total number of divisions in the

circular scale

1

Least count. =...................... =0.01mm

.

100