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Saturday, 10 October

JEE Main 2024 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 6 April 2024, Shift 2, Physics Q40

Question 40 of 90 in this shift, Physics question 10 of 30, Section A.

In a vernier calliper, when both jaws touch each other, zero of the vernier scale shifts towards left and its 4th4^{\text{th}} division coincides exactly with a certain division on main scale. If 50 vernier scale divisions equal to 49 main scale divisions and zero error in the instrument is 0.04 mm then how many main scale divisions are there in 1 cm ?
  1. (1)10
  2. (2)20Official answer
  3. (3)40
  4. (4)5

Official answer

Option 2

NTA final key.

Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.