JEE Main 2012 — Experimental Physics Question with Solution
JEE Main 2012 (19 May Online)
Question
divisions on the main scale of a vernier calliper coincide with divisions of the vernier scale. If each division of main scale is ' ' units, then the least count of the instrument is
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
No of divisions on main scale
No of divisions on vernier scale size of main scale division
Let size of vernier scale division be then we have
Least count is
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Experimental Physics chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2012, covering the Experimental Physics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.