JEE Main 2025 — Laws of Motion Question with Solution
JEE Main 2025 (24 Jan Shift 2)
Question
A string of length is fixed at one end and carries a mass of at the other end. The mass makes rotations per second about the vertical axis passing through end of the string as shown. The tension in the string is ML.
Enter your answer
Show full solutionCorrect answer: 36
Correct answer
36
Step-by-step explanation
and Also, $\begin{aligned} & \Rightarrow \quad T=M(36) \mathrm{L} \\ & \Rightarrow \quad T=36 \mathrm{ML} \end{aligned}$
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Laws of Motion chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2025, covering the Laws of Motion chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.