Question

Previous Years Questions
A student measured the diameter of a small steel
ball using a screw gauge of least count 0.001 cm.
The main scale reading is 5 mm and zero of
circular scale division coincides with 25 divisions
above the reference level. If screw gauge has a
zero error of -0.004 cm, the correct diameter of the
[NEET-2018]
ball is​

Answer 1

Answer: 0.529

Explanation:

Find out everything needed and just add the zero error thats it ...it is where the students scramble.