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GATE 2025 BM – Question 50

Biomaterials and Tissue Engineering · Biomaterial Properties · 2 marks · Multiple select

At one frequency, biomaterials have (storage modulus G′,loss modulus G″) in Pa: P=(1000,50), Q=(1000,80), R=(1000,100), S=(1000,0). Which statements hold?

  1. P,Q,R are viscoelastic solids
  2. P,Q,R are viscoelastic fluids
  3. R,S are viscoelastic solids
  4. S is elastic

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Show answer and explanation

Correct answer: (A) P,Q,R are viscoelastic solids; (D) S is elastic

Explanation

For P,Q,R, both moduli are nonzero and storage exceeds loss, giving predominantly solid-like viscoelastic behaviour at this frequency. S has storage but zero loss, representing an elastic solid rather than a dissipative viscoelastic one in the source classification. Thus A,D.

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