NextMockSearch exams, e.g. SSC CGL, UPPSC, Lekhpal
Railways PYQCBT 1 2016

RRB NTPC · Question 79

The mass per unit volume is called

  1. Force

  2. Work

  3. Density

  4. Pressure

Show answer & explanation

Answer: (C) Density

Explanation

Density is mass per unit volume (ρ = m/V), measured in kg/m³. Pressure is force per unit area.