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Saturday, 31 October

JEE Main 2020 · PhysicsMultiple choiceSingle correctMediumApplication

JEE Main 3 September 2020, Shift 1, Physics Q1

Question 1 of 75 in this shift, Physics question 1 of 25.

Using screw gauge of pitch 0.1 cm and 50 divisions on its circular scale, the thickness of an object is measured. It should correctly be recorded as :
  1. (1)2.123 cm
  2. (2)2.124 cmOfficial answer
  3. (3)2.125 cm
  4. (4)2.121 cm

Official answer

Option 2

NTA final key (Sep 2020).

Chapter
Units and Measurements
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 108 of the 174 JEE Main shifts held from 2017 to 2026.