JEE Main 2020 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 4 September 2020, Shift 2, Physics Q7

Question 7 of 75 in this shift, Physics question 7 of 25.

A cube of metal is subjected to a hydrostatic pressure of 4 GPa. The percentage change in the length of the side of the cube is close to : (Given bulk modulus of metal, B

= 8\times10^{10}

Pa)

(1)20
(2)0.6
(3)1.67Official answer
(4)5

Official answer

Option 3

NTA final key (Sep 2020).

Chapter: Mechanical Properties of Solids
Topic: Elasticity
Idea tested: Elastic Moduli

Same idea in other shifts

Asked 18× in all

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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.