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Friday, 9 October

JEE Main 2024 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 31 January 2024, Shift 2, Physics Q50

Question 50 of 90 in this shift, Physics question 20 of 30, Section A.

The measured value of the length of a simple pendulum is 20 cm with 2 mm accuracy. The time for 50 oscillations was measured to be 40 seconds with 1 second resolution. From these measurements, the accuracy in the measurement of acceleration due to gravity is N%. The value of N is:
  1. (1)6Official answer
  2. (2)4
  3. (3)8
  4. (4)5

Official answer

Option 1

NTA final key.

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 42 of the 174 JEE Main shifts held from 2017 to 2026.