• # question_answer A metallic piece weighs 80 N in air and 60 N in water. The relative density of the metallic piece is about: A) 8                                 B) 6C) 4                                 D) 2

$\operatorname{Relative}\,\,density=\frac{weight\,\,in\,\,air}{weight\,\,is\,\,water}$ $=\frac{80}{60}=1.33=2$