State whether the following questions are True or False. a) The absolute value of the ratio of the lateral strain to the longitudinal strain is known as Poisson's ratio. b)

The density of a material is defined as the mass per unit length. c) As temperature increases ductility and toughness of metals decrease. d) Hard materials like high carbon steels usually has high ductility. e) Toughness is the ability of a material to absorb energy and plastically deform without fracturing.