The critical fracture toughness decreases when thickness of specimens increases.
Bennett is a glass smith. One day he observed that there was a crack in the glasses, and he also observed that the crack propogation was different in two different thickness of two glasses. The fracture toughness at higher thickness is 50 units.
Question: Is the following statement plausible?
    Fracture toughness of the other glass could be 50 units.