🛠️ JEE🧲 Physics

Given below are two statements: one is labelled as Assertion \(A\) and the other is labelled as Reason R Assertion A: A …

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Given below are two statements: one is labelled as Assertion \(A\) and the other is labelled as Reason R

Assertion A: A sound wave has higher speed in solids than gases.
Reason R: Gases have higher value of Bulk modulus than solids.
In the light of the above statements, choose the correct answer from the options given below.

[JEE Main 2025, 28 Jan (Shift 1)]

a

A is true but R is false.

b

Both A and R are true and R is the correct explanation of A.

c

Both A and R are true but R is NOT the correct explanation of A.

d

A is false but R is true.

✓ Correct answer: a)

A is true but R is false.

Explanation

Elasticity of solids is more than gases.

\(B=\left(\frac{\Delta P}{\Delta V}\right)V\)


For a given change in pressure change in volume of solid is small hence solids have higher bulk modulus.

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