alleryThe vernier scale is named after which person?
- Henry Maudslay
- John Barrow
- Pedro Nunes
- Pierre Vernier
Show answer and solution
Correct answer: D. Pierre Vernier
The scale carries the name of the French mathematician Pierre Vernier, who devised it.
NEET UG Experimental Skills — practice questions
Explore 43 free Experimental Skills questions in NEET UG Physics. Open each question or exercise to read its content, reference answers and available explanation.
Practise Experimental Skills with Quill →Experimental Skills questions and exercises with answers
Showing questions 1–30 of 43.
The vernier scale is named after which person?Read the answer and worked solution →In which year did Pierre Vernier invent his caliper with a secondary scale?Read the answer and worked solution →A caliper has 1 mm main scale divisions and 10 vernier divisions spanning 9 of them. Its least count is:Read the answer and worked solution →On a caliper, 20 vernier divisions match 19 main divisions of 1 mm each. What is the least count?Read the answer and worked solution →Main scale divisions are 0.5 mm and 25 vernier divisions cover 24 of them. Find the least count.Read the answer and worked solution →The human ability to tell which two lines are exactly aligned is called what?Read the answer and worked solution →An instrument that shows a nonzero reading at its zero position has what?Read the answer and worked solution →A caliper with a zero error of +0.03 cm reads 3.27 cm. What is the corrected length?Read the answer and worked solution →How should the zero correction be applied to an observed reading?Read the answer and worked solution →With jaws closed, the 4th vernier mark lines up on the positive side. Least count is 0.01 cm. The zero error is:Read the answer and worked solution →In a retrograde vernier, N vernier divisions cover how many main scale divisions?Read the answer and worked solution →Compared with the main scale, a direct vernier has graduations that are:Read the answer and worked solution →What commonly causes a zero error in a vernier caliper?Read the answer and worked solution →A screw gauge measures size mainly by using which part?Read the answer and worked solution →In a screw gauge, the object is held between which two parts?Read the answer and worked solution →The distance a screw advances axially in one full turn is called its what?Read the answer and worked solution →For a single-start screw thread, lead and pitch are:Read the answer and worked solution →A metric screw gauge spindle has 2 threads per mm. One full turn moves it by:Read the answer and worked solution →A screw gauge has pitch 0.5 mm and 50 thimble divisions. What is its least count?Read the answer and worked solution →A screw gauge sleeve shows 5.5 mm and the thimble reads 28 divisions of 0.01 mm. Reading?Read the answer and worked solution →A spindle moves 0.025 inch per turn and the thimble has 25 divisions. One division equals:Read the answer and worked solution →Adding a vernier to a metric micrometer lets it read to about:Read the answer and worked solution →A screw has 1 mm lead and 10 mm outer diameter. A 1 mm axial move becomes a rim movement of about:Read the answer and worked solution →What tool is used to turn a micrometer sleeve to cancel zero error?Read the answer and worked solution →The accuracy of a micrometer is checked by measuring which standards?Read the answer and worked solution →For an accurate micrometer reading, the instrument and object should both be at:Read the answer and worked solution →Flatness and parallelism of micrometer anvil faces are checked using a:Read the answer and worked solution →Which micrometer type has a cylindrical anvil set perpendicular to the spindle for tube walls?Read the answer and worked solution →A digital micrometer detects spindle distance with what part?Read the answer and worked solution →Which micrometer measures a three-flute drill diameter from three evenly spaced points?Read the answer and worked solution →
Worked practice questions
In which year did Pierre Vernier invent his caliper with a secondary scale?
- 1831
- 1531
- 1631
- 1731
Show answer and solution
Correct answer: C. 1631
Pierre Vernier invented the caliper with an extra precision scale in 1631.
A caliper has 1 mm main scale divisions and 10 vernier divisions spanning 9 of them. Its least count is:
- 0.1 mm
- 1.0 mm
- 0.01 mm
- 0.9 mm
Show answer and solution
Correct answer: A. 0.1 mm
Least count equals S/n, so 1 mm divided by 10 gives 0.1 mm.
How to practise
- Choose a Experimental Skills question and try to work out your answer.
- Open the question to check the correct answer and read its worked solution.
- Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.
Put it into practice
Continue with Experimental Skills practice for NEET UG. Read explanations as you go. No signup form needed to start.
Practise Experimental Skills →