A student measured the diameter of a small steel ball using a screw gauge of least count . The main scale reading is and zero of circular scale division coincides with divisions above the reference level. If screw gauge has a zero error of , the correct diameter of the ball is:
- A
- B
- C
- D
Solution & Step-by-step Explanation
1. Main Scale Reading (MSR) .2. Circular Scale Reading (CSR) .3. Least Count (LC) .4. Measured Diameter .5. Correct Diameter Correct Diameter .