Pls ans following urgently dear experts: Q A micrometer screw gauge has a negative error of 0 008 cm - Physics - Measurements and Experimentation

Question

Pls ans following urgently dear experts:
Q A micrometer screw gauge has a negative error of 0 008 cm While
measuring the diameter of a wire, the reading on the main scale is
3 divisions and the 24th circular scale division coincides with the
baseline If the number of divisions on the main scale are 20 and
circular scale has 100 divisions, calculate the:
(a) pitch of the screw gauge [Ans 0 1 cm]
(b) least count of the screw gauge [Ans 0 001 cm]
(c) observed diameter of the wire [Ans 0 174 cml
(d) corrected diameter of the wire [Ans 0 182 cm]

Decoder_2 · Accepted Answer

Dear
Student,
Please find the
solution to the asked query

Pitch = 0
1cm or 1mmLeast count = pitchTotal dividsion on the circular scale = 0
1100 = 0
001 cmObserved reading = Linear Scale Reading + no
 of divisions on the circular scale × least countObserved reading = 3mm + 24×0
001 = 3
024 mmZero Error = - 8×0
001 = -0
008 mmActual reading = Observed reading - zero errorActual Reading = 3
024 -(-0 008) = 3 032 mm

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