In crystalline materials, fracture occurs normal to crystallographic planes called ___________
(a) Fracture point
(b) Cleavage plane
(c) Brittle plane
(d) Crystallographic point
The question was asked in an interview for internship.
My question is based upon Types of Fracture topic in division Imperfection in Metal Crystals, Fracture, Corrosion and Oxidation of Engineering Material & Metallurgy