JEE Main 2023 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 6 April 2023, Shift 2, Physics Q53

Question 53 of 90 in this shift, Physics question 23 of 30, Section B.

A metal block of mass m is suspended from a rigid support through a metal wire of diameter 14 mm. The tensile stress developed in the wire under equilibrium state is

7\times10^{5}

^{-2}

. The value of mass m is __________ kg. (Take, g = 9.8 ms

^{-2}

and

\pi=\frac{22}{7}

)

Official answer

NTA final key.

Chapter: Mechanical Properties of Solids
Topic: Elasticity
Idea tested: Stress and Strain Types

Same idea in other shifts

Asked 8× in all

5 Apr 2024, Shift 2 · Q38Match List-I with List-II : List-I List-II (A) A force that restores an elastic body of unit area to its original state (I) Bulk modulus…EasyMatch the list
1 Feb 2024, Shift 2 · Q53One end of a metal wire is fixed to a ceiling and a load of 2 kg hangs from the other end. A similar wire is attached to the bottom of the…MediumNumerical value
30 Jan 2024, Shift 1 · Q37Young's modules of material of a wire of length 'L' and cross-sectional area A is Y. If the length of the wire is doubled and…EasySingle correct
30 Jan 2024, Shift 1 · Q53Each of three blocks P, Q and R shown in figure has a mass of 3 kg. Each of the wires A and B has cross-sectional area…HardNumerical valueHas a figure
31 Jan 2024, Shift 2 · Q53Two blocks of mass 2 kg and 4 kg are connected by a metal wire going over a smooth pulley as shown in figure. The radius of wire is…MediumNumerical valueHas a figure
28 Jul 2022, Shift 2 · Q23A string of area of cross-section $4\ \mathrm{mm^2}$ and length 0.5 m is connected with a rigid body of mass 2 kg. The body is rotated in…MediumNumerical value
2 Apr 2017 (offline) · Q1A man grows into a giant such that his linear dimensions increase by a factor of 9. Assuming that his density remains same, the stress in…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.