/

Learn

Friday, 9 October

/

JEE Main 2026 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 6 April 2026, Shift 1, Physics Q30

Question 30 of 75 in this shift, Physics question 5 of 25, Section A.

A lift of mass 1600 kg is supported by thick iron wire. If the maximum stress which the wire can withstand is

4\times10^8

N/m

^2

and its radius is 4 mm, then maximum acceleration the lift can take is ________ m/s

^2

. (take

g=10

m/s

^2

and

\pi=3.14

)

(1)2.56Official answer
(2)3.89
(3)4.32
(4)5.16

Official answer

Option 1

NTA final key.

Chapter: Mechanical Properties of Solids
Topic: Elasticity
Idea tested: Breaking Stress and Breaking Force

Same idea in other shifts

Asked 2× in all

5 Apr 2026, Shift 1 · Q43Two wires as shown in the figure below, made of steel and have breaking stress of $12 \times 10^8\ \mathrm{N/m^2}$ . Area of cross-section…MediumSingle 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. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.