JEE Main 2026 · 5 Apr · Shift 1 · Physics Q46

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PhysicsInteger+4 / -1Question 46 of 75

A cube has side length 5 cm and modulus of rigidity $10^5$ N/m². The displacement produced by a force of 10 N in the upper face of cube is ________ mm.

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Answer and worked solution

Official answer: 2

Shear stress. $\dfrac{10}{(0.05)^2}=4000$ N/m².

Strain. $\dfrac{4000}{10^5}=0.04$ .

Displacement. $0.04\times5\text{ cm}=0.2\text{ cm}=2$ mm.

Answer: 2

Topics:Hooke's law and elastic moduli Stress and strain

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JEE Main 2026 · 5 Apr · Shift 1, Physics question 46