Physics - Error Question with Solution | TestHub
When the gap is closed without placing any object in the screw gauge whose least count is 0.005 mm , the division on its circular scale with the reference line on main scale, and when a small sphere is placed reading on main scale advances by 4 divisions, whereas circular scale reading advances by five times to the corresponding reading when no object was placed. There are 200 divisions on the circular scale. The radius of the sphere is
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Answer:
Solution:
The main scale reading is 4 divisions, which equals mm.
The circular scale reading advances five times the initial error, so divisions.
The actual circular scale reading is mm.
However, since there are 200 divisions, the least count is mm, so the corrected reading is mm.
Therefore, the diameter is mm and the radius is mm.