NEET2018Physics-Measurements
NEET 2018 Physics Screw Gauge MCQ Question
Type: MCQ-numerical-Easy-Class 11
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 o.004 cm, the correct diameter of the ball is
A
0.521 cm
B
0.525 cm
C
0.053 cm
D
0.529 cm
Correct Answer
Option D
Detailed Explanation
The correct diameter is calculated by adding the main scale reading and the circular scale reading, then adjusting for zero error.
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