Oscillations

JEE Main level, single correct, medium

59 of 194

Question 59 of 194

A mass m=1.0 kgm=1.0 \mathrm{~kg} is put on a flat pan attached to a vertical spring fixed on the ground. The mass of the spring and the pan is negligible. When pressed slightly and released, the mass executes simple harmonic motion. The spring constant is 500 N/m500 \mathrm{~N} / \mathrm{m}. What is the amplitude A of the motion, so that the mass mm tends to get detached from the pan ? (Take g=10 m/s2g=10 \mathrm{~m} / \mathrm{s}^2 ).
The spring is stiff enough so that it does not get distorted during the motion.

Show answer and solution

Answer: (C) A<2.0 cm\mathrm{A} \lt 2.0 \mathrm{~cm}

As F=−kx\mathrm{F}=-\mathrm{kx}

JEE Main question paper PDF

Open a shift to read the full paper on this page, or download it.

JEE Main 2025 Apr 2 Shift 1 question paper

Open Download PDF

Opening paper…

Explain it as a whiteboard videoStep-by-step, in Hinglish or English. Your first video needs no login.Solved it on paper but got it wrong?Upload a photo of your working. Mistake Doctor marks the exact line that broke.
See it move: Simple pendulum simulationDrag the sliders and watch the numbers in this question change.

More Physics practice

JEE Main Physics practice question on Oscillations (Simple Harmonic Motion), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.