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Saturday, 31 October

JEE Main 2024 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 6 April 2024, Shift 2, Physics Q33

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

A body projected vertically upwards with a certain speed from the top of a tower reaches the ground in t1t_1. If it is projected vertically downwards from the same point with the same speed, it reaches the ground in t2t_2. Time required to reach the ground, if it is dropped from the top of the tower, is :
  1. (1)t1t2\sqrt{t_1t_2}Official answer
  2. (2)t1+t2\sqrt{t_1+t_2}
  3. (3)t1−t2\sqrt{t_1-t_2}
  4. (4)t1t2\sqrt{\frac{t_1}{t_2}}

Official answer

Option 1

NTA final key.

Chapter
Motion in a Straight Line
Topic
Kinematics in 1D
Idea tested
Free Fall Time and Speed Symmetry

Same idea in other shifts

Asked 2× in all
  1. 29 Jul 2022, Shift 2 · Q37A juggler throws balls vertically upwards with same initial velocity in air. When the first ball reaches its highest position, he throws…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.