1. Tardigrade
  2. Question
  3. Physics
  4. The circular divisions of shown screw gauge are 50. It moves 0.5 mm on main scale in one rotation. The diameter of the ball is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The circular divisions of shown screw gauge are $50$. It moves $0.5 \,mm$ on main scale in one rotation. The diameter of the ball isPhysics Question Image

ManipalManipal 2014

Solution:

Zero error $=5 \times \frac{0.5}{50}=0.05\, mm$
Actual measurement
image
$=2 \times 0.5\, mm +25 \times \frac{0.5}{50}-0.05\, mm$
$=1\, mm +0.25\, mm -0.05\, mm =1.20\, mm$