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Working of Salt Bridge

Which of the ...

Question

Which of the following are the uses of a screw gauge?

A

To measure the size of sand particles.

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B

To measure the diameter of a given wire and find its volume.

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C

To measure the thickness of a given glass plate and find its volume.

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D

None of the above

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Solution

The correct options are
B To measure the diameter of a given wire and find its volume.
C To measure the thickness of a given glass plate and find its volume.
The Screw Gauge is an instrument to measure the dimensions of very small objects upto 0.01 mm.
Its main uses are:
To measure the diameter of the given lead shot.
To measure the diameter of a given wire and find its volume.
To measure the thickness of a given glass plate and find its volume.
To measure the volume of an irregular lamina.

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