JEE Main 2025 Physics question
The volume contraction of a solid copper cube of edge length 10 cm, when subjected to a hydraulic pressure of Pa, would be mm³. (Given bulk modulus of copper = Nm⁻²)
Answer: 50
Solution
ΔV = PV/B = (7×10⁶×(10×10⁻²)³)/(1.4×10¹¹) = 50 mm³