यदि E और G क्रमशः एक समदैशिक लोचदार (isotropic elastic) सामग्री के लोच मापांक (modulus of elasticity) और कतरनी मापांक (shear modulus) का प्रतिनिधित्व करते हैं, तो निम्नलिखित में से कौन सा भौतिक रूप से संभव संबंध नहीं है?

When a bar of length l and uniform cross-section is rigidly fixed at the upper end and hangs freely, the total elongation produced in the bar due to its own weight is given by (where w = weight per unit volume and E = Modulus of Elasticity):

The hoop stress set up in a thin cylinder subjected to internal fluid pressure is: