Verified Solution • 2025–26 Session moderate

QJEEM17Ph5deb: JEE Main 2017 Physics - Class 11 JEEM17Ph5deb Solution: An external pressure P is applied on a cube at 0 o C so that it …

An external pressure P is applied on a cube at 0oC so that it is equally compressed from all sides. K is the bulk modulus of the material of the cube and α is its coefficient of linear expansion. Suppose we want to bring the cube to its original size by heating. The temperature should be raised by:

Multiple Choice Options

  • A P3αK
  • B PαK
  • C 3αPK
  • D 3PKα

Step-by-Step Verified Solution

As we know, Bulk modulus

K = ΔP(−ΔVV)

⇒ ΔVV=PK

V = V0(1 + γΔt)

ΔVV0=γΔt

∴ PK=γΔt

⇒ Δt=PγK = P3αK

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