Diagrams show readings of a screw gauge.
Figure (i) shows the zero error reading when the screw gauge is closed, figure (ii) the reading when the screw gauge is being used to measure the diameter of a ball-bearing. What is the diameter of the ball-bearing? There are 50 divisions on circular scale.

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.

An Intiative by Sri Chaitanya

5.29 mm

5.26 mm

5.28 mm

5.32 mm

answer is B.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Zero error is 3 division $L C = \frac{0.5}{50} = 0.01$ mm
zero error = 0.03 mm
Reading = 5.0 + 29 0.01
d = 5.29-0.03 = 5.26 mm

Watch 3-min video & get full concept clarity

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test