Question

To measure the thickness of a given sheet using a screw gauge observation

Answer 1

Measurement of the thickness of a given sheet using micrometer screw gauge.

PROCEDURE :

Insert the given sheet between the studs of the screw gauge and determine the thickness at five different positions.

Find the average thickness and calculate the correct thickness by applying zero error.

Observations and calculations :

1) The least count of the screw gauge.

2) The zero error of the screw gauge.

3) Mean thickness of the sheet.

5) Average correct thickness of the sheet = Observed mean thickness - (zero error with the sign)