Learn

Saturday, 31 October

JEE Main 2022 · PhysicsMultiple choiceDiagram basedEasyCalculation

JEE Main 26 July 2022, Shift 2, Physics Q48

Question 48 of 90 in this shift, Physics question 18 of 30, Section A.

Two masses M1M_1 and M2M_2 are tied together at the two ends of a light inextensible string that passes over a frictionless pulley. When the mass M2M_2 is twice that of M1M_1, the acceleration of the system is a1a_1. When the mass M2M_2 is thrice that of M1M_1, the acceleration of the system is a2a_2. The ratio a1a2\frac{a_1}{a_2} will be :

The figure, in words

A pulley with a dot at its centre; a string over it with M1 hanging on the left and M2 hanging on the right, each with a downward arrow.
  1. (1)13\frac{1}{3}
  2. (2)23\frac{2}{3}Official answer
  3. (3)32\frac{3}{2}
  4. (4)12\frac{1}{2}

Official answer

Option 2

NTA final key.

Chapter
Laws of Motion
Topic
Newton's Laws of Motion
Idea tested
Standard Atwood Machine

Same idea in other shifts

Asked 5× in all
  1. 5 Apr 2026, Shift 1 · Q29Three masses m1=4m_1 = 4 kg, m2=4m_2 = 4 kg and m3=6m_3 = 6 kg are suspended from a fixed smooth frictionless pulley as shown in the figure…MediumSingle correctHas a figure
  2. 6 Apr 2024, Shift 1 · Q32A light string passing over a smooth light pulley connects two blocks of masses m1m_1 and m2m_2 (where m2>m1m_2 > m_1). If the acceleration…MediumSingle correct
  3. 9 Apr 2024, Shift 1 · Q34A light unstretchable string passing over a smooth light pulley connects two blocks of masses m1m_1 and m2m_2. If the acceleration of the…EasySingle correct
  4. 31 Jan 2024, Shift 2 · Q33A light string passing over a smooth light fixed pulley connects two blocks of masses m1m_1 and m2m_2. If the acceleration of the system…EasySingle correctHas a figure

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.