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Saturday, 31 October

JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 30 January 2024, Shift 2, Physics Q33

Question 33 of 90 in this shift, Physics question 3 of 30, Section A.

Three blocks AA, BB and CC are pulled on a horizontal smooth surface by a force of 80N80N as shown in figure The tensions T1T_1 and T2T_2 in the string are respectively:

The figure, in words

Three blocks in a row on a horizontal smooth surface: A (5 kg), string T1, B (3 kg), string T2, C (2 kg); force F = 80 N pulls C to the right.
  1. (1)40N,64N40N, 64NOfficial answer
  2. (2)60N,80N60N, 80N
  3. (3)88N,96N88N, 96N
  4. (4)80N,100N80N, 100N

Official answer

Option 1

NTA final key.

Same idea in other shifts

Asked 3× in all
  1. 5 Apr 2024, Shift 1 · Q52Three blocks M1M_1, M2M_2, M3M_3 having masses 4 kg, 6 kg and 10 kg respectively are hanging from a smooth pulley using rope 1, 2 and 3 as…MediumNumerical valueHas a figure
  2. 28 Jun 2022, Shift 1 · Q57A hanging mass M is connected to a four times bigger mass by using a string-pulley arrangement, as shown in the figure. The bigger mass is…MediumNumerical valueHas 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.