Learn

Saturday, 31 October

JEE Main 2022 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 29 July 2022, Shift 2, Physics Q57

Question 57 of 90 in this shift, Physics question 27 of 30, Section B.

The metallic bob of simple pendulum has the relative density 5. The time period of this pendulum is 10 s. If the metallic bob is immersed in water, then the new time period becomes 5x5\sqrt{x} s. The value of x will be __.

Official answer

5

NTA final key.

Chapter
Oscillations
Topic
Pendulums
Idea tested
Pendulum in Fluids

Same idea in other shifts

Asked 2× in all
  1. 31 Aug 2021, Shift 2 · Q10A bob of mass 'm' suspended by a thread of length ll undergoes simple harmonic oscillations with time period T. If the bob is immersed in…MediumSingle correct

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.