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JEE Main 27 July 2022, Shift 1, Physics Q57

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

A mass 0.9 kg, attached to a horizontal spring, executes SHM with an amplitude

A_1

. When this mass passes through its mean position, then a smaller mass of 124 g is placed over it and both masses move together with amplitude

A_2

. If the ratio

\frac{A_1}{A_2}

\frac{\alpha}{\alpha-1}

, then the value of

\alpha

will be ____.

Official answer

NTA final key.

Chapter: Oscillations
Topic: Energy in SHM
Idea tested: Mass Dropped at Mean Position

Same idea in other shifts

Asked 3× in all

24 Feb 2021, Shift 1 · Q11In the given figure, a mass M is attached to a horizontal spring which is fixed on one side to a rigid support. The spring constant of the…MediumSingle correctHas a figure
3 Sep 2020, Shift 2 · Q9A block of mass m attached to a massless spring is performing oscillatory motion of amplitude 'A' on a frictionless horizontal plane. If…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.