JEE Main 2017PhysicsOscillationsMediumMCQ

JEE Main 2017 — Oscillations Question with Solution

JEE Main 2017 (08 Apr Online)

Question

A 1 kg block attached to a spring vibrates with a frequency of 1 Hz on a frictionless horizontal table. Two springs identical to the original spring are attached in parallel to a 8 kg block placed on the same table. So, the frequency of vibration of the 8 kg block is 

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Show full solutionCorrect option: D
Correct answer
D12 Hz

Step-by-step explanation



The frequency of 1 kg block is f=12πkm=1 Hz

4π2=km    ,   m=1

Spring constant, k=4π2

In parallel connection of springs, the equivalent spring constant is keq=2k. 



f=12π K×28

Frequency of 8 kg block is=12 Hz

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About this question

This is a previous-year question from JEE Main 2017, covering the Oscillations 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.