Question

To determine the zero error in a screw gauge the screw is rotated forward till the screw touches the anvil and the edge of the cap is on the zero mark of the linear scale. At this position zero of the circular scale lies above the reference line by 3 circular scale divisions. What is the zero error of the instrument? Given least count of the screw gauge is 0.01 mm.​

Answer 1

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

Answer 2

Explanation:

Our Objective

Our objective is to use the screw gauge;

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.

The Theory

The screw gauge is an instrument used for measuring accurately the diameter of a thin wire or the thickness of a sheet of metal. It consists of a U-shaped frame fitted with a screwed spindle which is attached to a thimble.

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