JEE Main 2023 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 13 April 2023, Shift 1, Physics Q38

Question 38 of 90 in this shift, Physics question 8 of 30, Section A.

Under isothermal condition, the pressure of a gas is given by

P = aV^{-3}

, where

a

is a constant and V is the volume of the gas. The bulk modulus at constant temperature is equal to

(1)3 POfficial answer
(2)2 P
(3)P
(4) $\frac{P}{2}$

Official answer

Option 1

NTA final key.

Chapter: Mechanical Properties of Solids
Topic: Elasticity
Idea tested: Isothermal and Adiabatic Bulk Moduli

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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.