Which of the following is a property of viscoelastic material?: (A) Strain instantaneously during rapid stretching, (B) Strain linearly over time when a stress is applied slowly, (C) Both, (D) None
Answer is C. Viscoelasticity — The ability of a material to strain instantaneously like an elastic solid during rapid stretching or to resist shear flow and to strain linearly over time (like honey) when a stress is applied slowly.
Ref: Phillip’s Science of Dental Materials ed 12 page no. 152